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# 
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msgid ""
msgstr ""
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"Plural-Forms: nplurals=1; plural=0;\n"

#: ../../library/datetime.rst:2
msgid ":mod:`datetime` --- Basic date and time types"
msgstr ":mod:`datetime` --- 基本日期和时间类型"

#: ../../library/datetime.rst:11
msgid "**Source code:** :source:`Lib/datetime.py`"
msgstr "**源代码：** :source:`Lib/datetime.py`"

#: ../../library/datetime.rst:17
msgid ""
"The :mod:`datetime` module supplies classes for manipulating dates and "
"times."
msgstr ":mod:`datetime` 模块提供用于处理日期和时间的类。"

#: ../../library/datetime.rst:19
msgid ""
"While date and time arithmetic is supported, the focus of the implementation"
" is on efficient attribute extraction for output formatting and "
"manipulation."
msgstr "在支持日期时间数学运算的同时，实现的关注点更着重于如何能够更有效地解析其属性用于格式化输出和数据操作。"

#: ../../library/datetime.rst:25
msgid "Module :mod:`calendar`"
msgstr "模块 :mod:`calendar`"

#: ../../library/datetime.rst:25
msgid "General calendar related functions."
msgstr "通用日历相关函数"

#: ../../library/datetime.rst:28
msgid "Module :mod:`time`"
msgstr "模块 :mod:`time`"

#: ../../library/datetime.rst:28
msgid "Time access and conversions."
msgstr "时间的访问和转换"

#: ../../library/datetime.rst:31
msgid "Module :mod:`zoneinfo`"
msgstr ":mod:`zoneinfo` 模块"

#: ../../library/datetime.rst:31
msgid "Concrete time zones representing the IANA time zone database."
msgstr "代表 IANA 时区数据库的具体时区。"

#: ../../library/datetime.rst:33
msgid "Package `dateutil <https://dateutil.readthedocs.io/en/stable/>`_"
msgstr "`dateutil <https://dateutil.readthedocs.io/en/stable/>`_ 包"

#: ../../library/datetime.rst:34
msgid "Third-party library with expanded time zone and parsing support."
msgstr "具有扩展时区和解析支持的第三方库。"

#: ../../library/datetime.rst:39
msgid "Aware and Naive Objects"
msgstr "感知型对象和简单型对象"

#: ../../library/datetime.rst:41
msgid ""
"Date and time objects may be categorized as \"aware\" or \"naive\" depending"
" on whether or not they include timezone information."
msgstr "日期和时间对象可以根据它们是否包含时区信息而分为“感知型”和“简单型”两类。"

#: ../../library/datetime.rst:44
msgid ""
"With sufficient knowledge of applicable algorithmic and political time "
"adjustments, such as time zone and daylight saving time information, an "
"**aware** object can locate itself relative to other aware objects. An aware"
" object represents a specific moment in time that is not open to "
"interpretation. [#]_"
msgstr ""
"充分掌握应用性算法和政治性时间调整信息例如时区和夏令时的情况下，一个 **感知型** 对象就能相对于其他感知型对象来精确定位自身时间点。 "
"感知型对象是用来表示一个没有解释空间的固定时间点。 [#]_"

#: ../../library/datetime.rst:50
msgid ""
"A **naive** object does not contain enough information to unambiguously "
"locate itself relative to other date/time objects. Whether a naive object "
"represents Coordinated Universal Time (UTC), local time, or time in some "
"other timezone is purely up to the program, just like it is up to the "
"program whether a particular number represents metres, miles, or mass. Naive"
" objects are easy to understand and to work with, at the cost of ignoring "
"some aspects of reality."
msgstr ""
"**简单型** 对象没有包含足够多的信息来无歧义地相对于其他 date/time 对象来定位自身时间点。 "
"不论一个简单型对象所代表的是世界标准时间（UTC）、当地时间还是某个其他时区的时间完全取决于具体程序，就像一个特定数字所代表的是米、英里还是质量完全取决于具体程序一样。"
" 简单型对象更易于理解和使用，代价则是忽略了某些现实性考量。"

#: ../../library/datetime.rst:57
msgid ""
"For applications requiring aware objects, :class:`.datetime` and "
":class:`.time` objects have an optional time zone information attribute, "
":attr:`!tzinfo`, that can be set to an instance of a subclass of the "
"abstract :class:`tzinfo` class. These :class:`tzinfo` objects capture "
"information about the offset from UTC time, the time zone name, and whether "
"daylight saving time is in effect."
msgstr ""
"对于要求感知型对象的应用，:class:`.datetime` 和 :class:`.time` 对象具有一个可选的时区信息属性 "
":attr:`!tzinfo`，它可被设为抽象类 :class:`tzinfo` 的子类的一个实例。 这些 :class:`tzinfo` 对象会捕获与"
" UTC 时间的差值、时区名称以及夏令时是否生效等信息。"

#: ../../library/datetime.rst:63
msgid ""
"Only one concrete :class:`tzinfo` class, the :class:`timezone` class, is "
"supplied by the :mod:`datetime` module. The :class:`timezone` class can "
"represent simple timezones with fixed offsets from UTC, such as UTC itself "
"or North American EST and EDT timezones. Supporting timezones at deeper "
"levels of detail is up to the application. The rules for time adjustment "
"across the world are more political than rational, change frequently, and "
"there is no standard suitable for every application aside from UTC."
msgstr ""
":mod:`datetime` 模块只提供了一个具体的 :class:`tzinfo` 类，即 :class:`timezone` 类。 "
":class:`timezone` 类可以表示具有相对于 UTC 的固定时差的简单时区，例如 UTC 本身或北美的 EST 和 EDT 时区等。 "
"支持时间的详细程度取决于具体的应用。 世界各地的时间调整规则往往是政治性多于合理性，经常会发生变化，除了 UTC 之外并没有一个能适合所有应用的标准。"

#: ../../library/datetime.rst:72
msgid "Constants"
msgstr "常量"

#: ../../library/datetime.rst:74
msgid "The :mod:`datetime` module exports the following constants:"
msgstr " :mod:`datetime` 模块包含了以下常量："

#: ../../library/datetime.rst:78
msgid ""
"The smallest year number allowed in a :class:`date` or :class:`.datetime` "
"object. :const:`MINYEAR` is ``1``."
msgstr ""
":class:`date` 或者 :class:`datetime` 对象允许的最小年份。 常量 :const:`MINYEAR` 是 ``1`` 。"

#: ../../library/datetime.rst:84
msgid ""
"The largest year number allowed in a :class:`date` or :class:`.datetime` "
"object. :const:`MAXYEAR` is ``9999``."
msgstr ""
":class:`date` 或 :class:`datetime` 对象允许最大的年份。常量 :const:`MAXYEAR` 是 ``9999`` 。"

#: ../../library/datetime.rst:88
msgid "Available Types"
msgstr "有效的类型"

#: ../../library/datetime.rst:93
msgid ""
"An idealized naive date, assuming the current Gregorian calendar always was,"
" and always will be, in effect. Attributes: :attr:`year`, :attr:`month`, and"
" :attr:`day`."
msgstr ""
"一个理想化的简单型日期，它假设当今的公历在过去和未来永远有效。 属性: :attr:`year`, :attr:`month`, and "
":attr:`day`。"

#: ../../library/datetime.rst:101
msgid ""
"An idealized time, independent of any particular day, assuming that every "
"day has exactly 24\\*60\\*60 seconds.  (There is no notion of \"leap "
"seconds\" here.) Attributes: :attr:`hour`, :attr:`minute`, :attr:`second`, "
":attr:`microsecond`, and :attr:`.tzinfo`."
msgstr ""
"一个独立于任何特定日期的理想化时间，它假设每一天都恰好等于 24\\*60\\*60 秒。 （这里没有“闰秒”的概念。） 包含属性: "
":attr:`hour`, :attr:`minute`, :attr:`second`, :attr:`microsecond` 和 "
":attr:`.tzinfo`。"

#: ../../library/datetime.rst:110
msgid ""
"A combination of a date and a time. Attributes: :attr:`year`, :attr:`month`,"
" :attr:`day`, :attr:`hour`, :attr:`minute`, :attr:`second`, "
":attr:`microsecond`, and :attr:`.tzinfo`."
msgstr ""
"日期和时间的结合。属性：:attr:`year`, :attr:`month`, :attr:`day`, :attr:`hour`, "
":attr:`minute`, :attr:`second`, :attr:`microsecond`, and :attr:`.tzinfo`."

#: ../../library/datetime.rst:118
msgid ""
"A duration expressing the difference between two :class:`date`, "
":class:`.time`, or :class:`.datetime` instances to microsecond resolution."
msgstr ""
"表示两个 :class:`date` 对象或 :class:`.time` 对象，或者 :class:`.datetime` "
"对象之间的时间间隔，精确到微秒。"

#: ../../library/datetime.rst:125
msgid ""
"An abstract base class for time zone information objects. These are used by "
"the :class:`.datetime` and :class:`.time` classes to provide a customizable "
"notion of time adjustment (for example, to account for time zone and/or "
"daylight saving time)."
msgstr ""
"一个描述时区信息对象的抽象基类。 用来给 :class:`.datetime` 和 :class:`.time` "
"类提供自定义的时间调整概念（例如处理时区和/或夏令时）。"

#: ../../library/datetime.rst:133
msgid ""
"A class that implements the :class:`tzinfo` abstract base class as a fixed "
"offset from the UTC."
msgstr "一个实现了 :class:`tzinfo` 抽象基类的子类，用于表示相对于 世界标准时间（UTC）的偏移量。"

#: ../../library/datetime.rst:138 ../../library/datetime.rst:156
msgid "Objects of these types are immutable."
msgstr "这些类型的对象都是不可变的。"

#: ../../library/datetime.rst:140
msgid "Subclass relationships::"
msgstr "子类关系 ::"

#: ../../library/datetime.rst:151
msgid "Common Properties"
msgstr "通用的特征属性"

#: ../../library/datetime.rst:153
msgid ""
"The :class:`date`, :class:`.datetime`, :class:`.time`, and :class:`timezone`"
" types share these common features:"
msgstr ""
":class:`date`, :class:`.datetime`, :class:`.time` 和 :class:`timezone` "
"类型共享这些通用特性:"

#: ../../library/datetime.rst:157
msgid ""
"Objects of these types are hashable, meaning that they can be used as "
"dictionary keys."
msgstr ""

#: ../../library/datetime.rst:159
msgid ""
"Objects of these types support efficient pickling via the :mod:`pickle` "
"module."
msgstr "这些类型的对象支持通过 :mod:`pickle` 模块进行高效的封存。"

#: ../../library/datetime.rst:162
msgid "Determining if an Object is Aware or Naive"
msgstr "确定一个对象是感知型还是简单型"

#: ../../library/datetime.rst:164
msgid "Objects of the :class:`date` type are always naive."
msgstr ":class:`date`  类型的对象都是简单型的。"

#: ../../library/datetime.rst:166
msgid ""
"An object of type :class:`.time` or :class:`.datetime` may be aware or "
"naive."
msgstr ":class:`.time` 或 :class:`.datetime` 类型的对象可以是感知型或者简单型。"

#: ../../library/datetime.rst:168
msgid ""
"A :class:`.datetime` object *d* is aware if both of the following hold:"
msgstr "一个 :class:`.datetime` 对象 *d* 在以下条件同时成立时将是感知型的："

#: ../../library/datetime.rst:170
msgid "``d.tzinfo`` is not ``None``"
msgstr "``d.tzinfo`` 不为 ``None``"

#: ../../library/datetime.rst:171
msgid "``d.tzinfo.utcoffset(d)`` does not return ``None``"
msgstr "``d.tzinfo.utcoffset(d)`` 不返回 ``None``"

#: ../../library/datetime.rst:173
msgid "Otherwise, *d* is naive."
msgstr "在其他情况下，*d* 将是简单型的。"

#: ../../library/datetime.rst:175
msgid "A :class:`.time` object *t* is aware if both of the following hold:"
msgstr "一个 :class:`.time` 对象 *t* 在以下条件同时成立时将是感知型的："

#: ../../library/datetime.rst:177
msgid "``t.tzinfo`` is not ``None``"
msgstr "``t.tzinfo`` 不为 ``None``"

#: ../../library/datetime.rst:178
msgid "``t.tzinfo.utcoffset(None)`` does not return ``None``."
msgstr "``t.tzinfo.utcoffset(None)`` 不返回 ``None``。"

#: ../../library/datetime.rst:180
msgid "Otherwise, *t* is naive."
msgstr "在其他情况下，*t* 将是简单型的。"

#: ../../library/datetime.rst:182
msgid ""
"The distinction between aware and naive doesn't apply to :class:`timedelta` "
"objects."
msgstr "感知型和简单型之间的区别不适用于 :class:`timedelta` 对象。"

#: ../../library/datetime.rst:188
msgid ":class:`timedelta` Objects"
msgstr ":class:`timedelta` 类对象"

#: ../../library/datetime.rst:190
msgid ""
"A :class:`timedelta` object represents a duration, the difference between "
"two dates or times."
msgstr ":class:`timedelta` 对象表示两个 date 或者 time 的时间间隔。"

#: ../../library/datetime.rst:195
msgid ""
"All arguments are optional and default to ``0``. Arguments may be integers "
"or floats, and may be positive or negative."
msgstr "所有参数都是可选的并且默认为 ``0``。 这些参数可以是整数或者浮点数，也可以是正数或者负数。"

#: ../../library/datetime.rst:198
msgid ""
"Only *days*, *seconds* and *microseconds* are stored internally. Arguments "
"are converted to those units:"
msgstr "只有 *days*, *seconds* 和 *microseconds* 会存储在内部。 参数单位的换算规则如下："

#: ../../library/datetime.rst:201
msgid "A millisecond is converted to 1000 microseconds."
msgstr "1毫秒会转换成1000微秒。"

#: ../../library/datetime.rst:202
msgid "A minute is converted to 60 seconds."
msgstr "1分钟会转换成60秒。"

#: ../../library/datetime.rst:203
msgid "An hour is converted to 3600 seconds."
msgstr "1小时会转换成3600秒。"

#: ../../library/datetime.rst:204
msgid "A week is converted to 7 days."
msgstr "1星期会转换成7天。"

#: ../../library/datetime.rst:206
msgid ""
"and days, seconds and microseconds are then normalized so that the "
"representation is unique, with"
msgstr "日期、秒、微秒都是标准化的，所以它们的表达方式也是唯一的，例："

#: ../../library/datetime.rst:209
msgid "``0 <= microseconds < 1000000``"
msgstr "``0 <= microseconds < 1000000``"

#: ../../library/datetime.rst:210
msgid "``0 <= seconds < 3600*24`` (the number of seconds in one day)"
msgstr "``0 <= seconds < 3600*24`` (一天的秒数)"

#: ../../library/datetime.rst:211
msgid "``-999999999 <= days <= 999999999``"
msgstr "``-999999999 <= days <= 999999999``"

#: ../../library/datetime.rst:213
msgid ""
"The following example illustrates how any arguments besides *days*, "
"*seconds* and *microseconds* are \"merged\" and normalized into those three "
"resulting attributes::"
msgstr ""
"下面的例子演示了如何对 *days*, *seconds* 和 *microseconds* "
"以外的任意参数执行“合并”操作并标准化为以上三个结果属性::"

#: ../../library/datetime.rst:231
msgid ""
"If any argument is a float and there are fractional microseconds, the "
"fractional microseconds left over from all arguments are combined and their "
"sum is rounded to the nearest microsecond using round-half-to-even "
"tiebreaker. If no argument is a float, the conversion and normalization "
"processes are exact (no information is lost)."
msgstr ""
"在有任何参数为浮点型并且 microseconds "
"值为小数的情况下，从所有参数中余下的微秒数将被合并，并使用四舍五入偶不入奇的规则将总计值舍入到最接近的整数微秒值。 "
"如果没有任何参数为浮点型的情况下，则转换和标准化过程将是完全精确的（不会丢失信息）。"

#: ../../library/datetime.rst:238
msgid ""
"If the normalized value of days lies outside the indicated range, "
":exc:`OverflowError` is raised."
msgstr "如果标准化后的 days 数值超过了指定范围，将会抛出 :exc:`OverflowError` 异常。"

#: ../../library/datetime.rst:241
msgid ""
"Note that normalization of negative values may be surprising at first. For "
"example::"
msgstr "请注意对负数值进行标准化的结果可能会令人感到惊讶。 例如::"

#: ../../library/datetime.rst:250 ../../library/datetime.rst:544
#: ../../library/datetime.rst:1051 ../../library/datetime.rst:1669
#: ../../library/datetime.rst:2262
msgid "Class attributes:"
msgstr "类属性："

#: ../../library/datetime.rst:254
msgid ""
"The most negative :class:`timedelta` object, ``timedelta(-999999999)``."
msgstr " :class:`timedelta` 类对象的最小值为 ``timedelta(-999999999)``。"

#: ../../library/datetime.rst:259
msgid ""
"The most positive :class:`timedelta` object, ``timedelta(days=999999999, "
"hours=23, minutes=59, seconds=59, microseconds=999999)``."
msgstr ""
" :class:`timedelta` 类对象的最大值为 ``timedelta(days=999999999, hours=23, "
"minutes=59, seconds=59, microseconds=999999)``。"

#: ../../library/datetime.rst:265
msgid ""
"The smallest possible difference between non-equal :class:`timedelta` "
"objects, ``timedelta(microseconds=1)``."
msgstr "两个不相等的 :class:`timedelta` 类对象最小的间隔为 ``timedelta(microseconds=1)``。"

#: ../../library/datetime.rst:268
msgid ""
"Note that, because of normalization, ``timedelta.max`` > ``-timedelta.min``."
" ``-timedelta.max`` is not representable as a :class:`timedelta` object."
msgstr ""
"需要注意的是，因为标准化的缘故，``timedelta.max`` > "
"``-timedelta.min``，``-timedelta.max`` 不可以表示一个 :class:`timedelta` 类对象。"

#: ../../library/datetime.rst:271 ../../library/datetime.rst:562
#: ../../library/datetime.rst:1071 ../../library/datetime.rst:1689
msgid "Instance attributes (read-only):"
msgstr "实例属性（只读）："

#: ../../library/datetime.rst:274
msgid "Attribute"
msgstr "属性"

#: ../../library/datetime.rst:274
msgid "Value"
msgstr "值"

#: ../../library/datetime.rst:276
msgid "``days``"
msgstr "``days``"

#: ../../library/datetime.rst:276
msgid "Between -999999999 and 999999999 inclusive"
msgstr "-999999999 至 999999999 ，含999999999 "

#: ../../library/datetime.rst:278
msgid "``seconds``"
msgstr "``seconds``"

#: ../../library/datetime.rst:278
msgid "Between 0 and 86399 inclusive"
msgstr "0 至 86399，包含86399"

#: ../../library/datetime.rst:280
msgid "``microseconds``"
msgstr "``microseconds``"

#: ../../library/datetime.rst:280
msgid "Between 0 and 999999 inclusive"
msgstr "0 至 999999，包含999999"

#: ../../library/datetime.rst:283 ../../library/datetime.rst:579
#: ../../library/datetime.rst:1124
msgid "Supported operations:"
msgstr "支持的运算："

#: ../../library/datetime.rst:288 ../../library/datetime.rst:582
#: ../../library/datetime.rst:1127
msgid "Operation"
msgstr "操作"

#: ../../library/datetime.rst:288 ../../library/datetime.rst:582
#: ../../library/datetime.rst:1127
msgid "Result"
msgstr "结果"

#: ../../library/datetime.rst:290
msgid "``t1 = t2 + t3``"
msgstr "``t1 = t2 + t3``"

#: ../../library/datetime.rst:290
msgid ""
"Sum of *t2* and *t3*. Afterwards *t1*-*t2* == *t3* and *t1*-*t3* == *t2* are"
" true. (1)"
msgstr "*t2* 和 *t3* 的和。 运算后 *t1*-*t2* == *t3* and *t1*-*t3* == *t2* 必为真值。(1)"

#: ../../library/datetime.rst:293
msgid "``t1 = t2 - t3``"
msgstr "``t1 = t2 - t3``"

#: ../../library/datetime.rst:293
msgid ""
"Difference of *t2* and *t3*. Afterwards *t1* == *t2* - *t3* and *t2* == *t1*"
" + *t3* are true. (1)(6)"
msgstr ""
"*t2* 减 *t3* 的差。 运算后 *t1* == *t2* - *t3* and *t2* == *t1* + *t3* 必为真值。 (1)(6)"

#: ../../library/datetime.rst:297
msgid "``t1 = t2 * i or t1 = i * t2``"
msgstr "``t1 = t2 * i or t1 = i * t2``"

#: ../../library/datetime.rst:297
msgid ""
"Delta multiplied by an integer. Afterwards *t1* // i == *t2* is true, "
"provided ``i != 0``."
msgstr "乘以一个整数。运算后假如 ``i != 0`` 则 *t1* // i == *t2* 必为真值。"

#: ../../library/datetime.rst:301
msgid "In general, *t1* \\* i == *t1* \\* (i-1) + *t1* is true. (1)"
msgstr " 通常情况下， *t1* \\* i == *t1* \\* (i-1) + *t1* 为真值。 (1)"

#: ../../library/datetime.rst:304
msgid "``t1 = t2 * f or t1 = f * t2``"
msgstr "``t1 = t2 * f or t1 = f * t2``"

#: ../../library/datetime.rst:304
msgid ""
"Delta multiplied by a float. The result is rounded to the nearest multiple "
"of timedelta.resolution using round-half-to-even."
msgstr "乘以一个浮点数，结果会被舍入到 timedelta 最接近的整数倍。 精度使用四舍五偶入奇不入规则。"

#: ../../library/datetime.rst:308
msgid "``f = t2 / t3``"
msgstr "``f = t2 / t3``"

#: ../../library/datetime.rst:308
msgid ""
"Division (3) of overall duration *t2* by interval unit *t3*. Returns a "
":class:`float` object."
msgstr "总时间 *t2* 除以间隔单位 *t3* (3)。 返回一个 :class:`float` 对象。"

#: ../../library/datetime.rst:312
msgid "``t1 = t2 / f or t1 = t2 / i``"
msgstr "``t1 = t2 / f or t1 = t2 / i``"

#: ../../library/datetime.rst:312
msgid ""
"Delta divided by a float or an int. The result is rounded to the nearest "
"multiple of timedelta.resolution using round-half-to-even."
msgstr "除以一个浮点数或整数。 结果会被舍入到 timedelta 最接近的整数倍。 精度使用四舍五偶入奇不入规则。"

#: ../../library/datetime.rst:316
msgid "``t1 = t2 // i`` or ``t1 = t2 // t3``"
msgstr "``t1 = t2 // i`` or ``t1 = t2 // t3``"

#: ../../library/datetime.rst:316
msgid ""
"The floor is computed and the remainder (if any) is thrown away. In the "
"second case, an integer is returned. (3)"
msgstr "计算底数，其余部分（如果有）将被丢弃。在第二种情况下，将返回整数。 （3）"

#: ../../library/datetime.rst:320
msgid "``t1 = t2 % t3``"
msgstr "``t1 = t2 % t3``"

#: ../../library/datetime.rst:320
msgid "The remainder is computed as a :class:`timedelta` object. (3)"
msgstr "余数为一个 :class:`timedelta` 对象。(3)"

#: ../../library/datetime.rst:323
msgid "``q, r = divmod(t1, t2)``"
msgstr "``q, r = divmod(t1, t2)``"

#: ../../library/datetime.rst:323
msgid ""
"Computes the quotient and the remainder: ``q = t1 // t2`` (3) and ``r = t1 %"
" t2``. q is an integer and r is a :class:`timedelta` object."
msgstr ""
"通过 : ``q = t1 // t2`` (3) and ``r = t1 % t2`` 计算出商和余数。q是一个整数，r是一个 "
":class:`timedelta` 对象。"

#: ../../library/datetime.rst:328
msgid "``+t1``"
msgstr "``+t1``"

#: ../../library/datetime.rst:328
msgid "Returns a :class:`timedelta` object with the same value. (2)"
msgstr "返回一个相同数值的 :class:`timedelta` 对象。"

#: ../../library/datetime.rst:331
msgid "``-t1``"
msgstr "``-t1``"

#: ../../library/datetime.rst:331
msgid ""
"equivalent to :class:`timedelta`\\ (-*t1.days*, -*t1.seconds*, "
"-*t1.microseconds*), and to *t1*\\* -1. (1)(4)"
msgstr ""
"等价于 :class:`timedelta`\\ (-*t1.days*, -*t1.seconds*, -*t1.microseconds*), 和 "
"*t1*\\* -1. (1)(4)"

#: ../../library/datetime.rst:336
msgid "``abs(t)``"
msgstr "``abs(t)``"

#: ../../library/datetime.rst:336
msgid ""
"equivalent to +\\ *t* when ``t.days >= 0``, and to -*t* when ``t.days < 0``."
" (2)"
msgstr "当 ``t.days >= 0`` 时等于 +\\ *t*, 当 ``t.days < 0`` 时 -*t* 。 (2)"

#: ../../library/datetime.rst:339
msgid "``str(t)``"
msgstr "``str(t)``"

#: ../../library/datetime.rst:339
msgid ""
"Returns a string in the form ``[D day[s], ][H]H:MM:SS[.UUUUUU]``, where D is"
" negative for negative ``t``. (5)"
msgstr ""
"返回一个形如 ``[D day[s], ][H]H:MM:SS[.UUUUUU]`` 的字符串，当 ``t`` 为负数的时候，  D 也为负数。 (5)"

#: ../../library/datetime.rst:343
msgid "``repr(t)``"
msgstr "``repr(t)``"

#: ../../library/datetime.rst:343
msgid ""
"Returns a string representation of the :class:`timedelta` object as a "
"constructor call with canonical attribute values."
msgstr "返回一个 :class:`timedelta` 对象的字符串表示形式，作为附带正规属性值的构造器调用。"

#: ../../library/datetime.rst:349 ../../library/datetime.rst:596
#: ../../library/datetime.rst:2475
msgid "Notes:"
msgstr "注释："

#: ../../library/datetime.rst:352
msgid "This is exact but may overflow."
msgstr "结果正确，但可能会溢出。"

#: ../../library/datetime.rst:355
msgid "This is exact and cannot overflow."
msgstr "结果正确，不会溢出。"

#: ../../library/datetime.rst:358
msgid "Division by 0 raises :exc:`ZeroDivisionError`."
msgstr "除以0将会抛出异常  :exc:`ZeroDivisionError` 。"

#: ../../library/datetime.rst:361
msgid "-*timedelta.max* is not representable as a :class:`timedelta` object."
msgstr "-*timedelta.max* 不是一个 :class:`timedelta` 类对象。"

#: ../../library/datetime.rst:364
msgid ""
"String representations of :class:`timedelta` objects are normalized "
"similarly to their internal representation. This leads to somewhat unusual "
"results for negative timedeltas. For example::"
msgstr ":class:`timedelta` 对象的字符串表示形式类似于其内部表示形式被规范化。对于负时间增量，这会导致一些不寻常的结果。例如::"

#: ../../library/datetime.rst:374
msgid ""
"The expression ``t2 - t3`` will always be equal to the expression ``t2 + "
"(-t3)`` except when t3 is equal to ``timedelta.max``; in that case the "
"former will produce a result while the latter will overflow."
msgstr ""
"表达式 ``t2 - t3`` 通常与 ``t2 + (-t3)`` 是等价的，除非 t3 等于 ``timedelta.max``; "
"在这种情况下前者会返回结果，而后者则会溢出。"

#: ../../library/datetime.rst:378
msgid ""
"In addition to the operations listed above, :class:`timedelta` objects "
"support certain additions and subtractions with :class:`date` and "
":class:`.datetime` objects (see below)."
msgstr ""
"除了上面列举的操作以外，:class:`timedelta` 对象还支持与 :class:`date` 和 :class:`.datetime` "
"对象进行特定的相加和相减运算（见下文）。"

#: ../../library/datetime.rst:382
msgid ""
"Floor division and true division of a :class:`timedelta` object by another "
":class:`timedelta` object are now supported, as are remainder operations and"
" the :func:`divmod` function. True division and multiplication of a "
":class:`timedelta` object by a :class:`float` object are now supported."
msgstr ""
"现在已支持 :class:`timedelta` 对象与另一个 :class:`timedelta` 对象相整除或相除，包括求余运算和 "
":func:`divmod` 函数。 现在也支持 :class:`timedelta` 对象加上或乘以一个 :class:`float` 对象。"

#: ../../library/datetime.rst:389
msgid ""
"Comparisons of :class:`timedelta` objects are supported, with some caveats."
msgstr "支持 :class:`timedelta` 对象之间进行比较，但其中有一些注意事项。"

#: ../../library/datetime.rst:391
msgid ""
"The comparisons ``==`` or ``!=`` *always* return a :class:`bool`, no matter "
"the type of the compared object::"
msgstr "``==`` 或 ``!=`` 比较 *总是* 返回一个 :class:`bool` 对象，无论被比较的对象是什么类型::"

#: ../../library/datetime.rst:402
msgid ""
"For all other comparisons (such as ``<`` and ``>``), when a "
":class:`timedelta` object is compared to an object of a different type, "
":exc:`TypeError` is raised::"
msgstr ""
"对于所有其他比较 (例如 ``<`` 和 ``>``)，当一个 :class:`timedelta` 对象与其他类型的对象比较时，将引发 "
":exc:`TypeError`::"

#: ../../library/datetime.rst:413
msgid ""
"In Boolean contexts, a :class:`timedelta` object is considered to be true if"
" and only if it isn't equal to ``timedelta(0)``."
msgstr "在布尔运算中，:class:`timedelta` 对象当且仅当其不等于 ``timedelta(0)`` 时则会被视为真值。"

#: ../../library/datetime.rst:416 ../../library/datetime.rst:625
#: ../../library/datetime.rst:1198 ../../library/datetime.rst:1786
msgid "Instance methods:"
msgstr "实例方法："

#: ../../library/datetime.rst:420
msgid ""
"Return the total number of seconds contained in the duration. Equivalent to "
"``td / timedelta(seconds=1)``. For interval units other than seconds, use "
"the division form directly (e.g. ``td / timedelta(microseconds=1)``)."
msgstr ""
"返回期间占用了多少秒。等价于 ``td / timedelta(seconds=1)``。对于秒以外的间隔单位，直接使用除法形式 (例如  ``td /"
" timedelta(microseconds=1)``)。"

#: ../../library/datetime.rst:424
msgid ""
"Note that for very large time intervals (greater than 270 years on most "
"platforms) this method will lose microsecond accuracy."
msgstr "需要注意的是，时间间隔较大时，这个方法的结果中的微秒将会失真（大多数平台上大于270年视为一个较大的时间间隔）。"

#: ../../library/datetime.rst:430
msgid "Examples of usage: :class:`timedelta`"
msgstr ":class:`timedelta` 用法示例"

#: ../../library/datetime.rst:432
msgid "An additional example of normalization::"
msgstr "一个标准化的附加示例::"

#: ../../library/datetime.rst:444
msgid "Examples of :class:`timedelta` arithmetic::"
msgstr ":class:`timedelta` 算术运算的示例::"

#: ../../library/datetime.rst:463
msgid ":class:`date` Objects"
msgstr ":class:`date` 对象"

#: ../../library/datetime.rst:465
msgid ""
"A :class:`date` object represents a date (year, month and day) in an "
"idealized calendar, the current Gregorian calendar indefinitely extended in "
"both directions."
msgstr ":class:`date` 对象代表一个理想化历法中的日期（年、月和日），即当今的格列高利历向前后两个方向无限延伸。"

#: ../../library/datetime.rst:469
msgid ""
"January 1 of year 1 is called day number 1, January 2 of year 1 is called "
"day number 2, and so on. [#]_"
msgstr "公元 1 年 1 月 1日是第 1 日，公元 1 年 1 月 2 日是第 2 日，依此类推。 [#]_"

#: ../../library/datetime.rst:474
msgid ""
"All arguments are required. Arguments must be integers, in the following "
"ranges:"
msgstr "所有参数都是必要的。 参数必须是在下面范围内的整数："

#: ../../library/datetime.rst:477
msgid "``MINYEAR <= year <= MAXYEAR``"
msgstr "``MINYEAR <= year <= MAXYEAR``"

#: ../../library/datetime.rst:478
msgid "``1 <= month <= 12``"
msgstr "``1 <= month <= 12``"

#: ../../library/datetime.rst:479
msgid "``1 <= day <= number of days in the given month and year``"
msgstr "``1 <= 日期 <= 给定年月对应的天数``"

#: ../../library/datetime.rst:481 ../../library/datetime.rst:843
msgid ""
"If an argument outside those ranges is given, :exc:`ValueError` is raised."
msgstr "如果参数不在这些范围内，则抛出 :exc:`ValueError` 异常。"

#: ../../library/datetime.rst:484 ../../library/datetime.rst:848
msgid "Other constructors, all class methods:"
msgstr "其它构造器，所有的类方法："

#: ../../library/datetime.rst:488
msgid "Return the current local date."
msgstr "返回当前的本地日期。"

#: ../../library/datetime.rst:490
msgid "This is equivalent to ``date.fromtimestamp(time.time())``."
msgstr "这等价于 ``date.fromtimestamp(time.time())``。"

#: ../../library/datetime.rst:494
msgid ""
"Return the local date corresponding to the POSIX timestamp, such as is "
"returned by :func:`time.time`."
msgstr "返回对应于 POSIX 时间戳的当地时间，例如 :func:`time.time` 返回的就是时间戳。"

#: ../../library/datetime.rst:497
msgid ""
"This may raise :exc:`OverflowError`, if the timestamp is out of the range of"
" values supported by the platform C :c:func:`localtime` function, and "
":exc:`OSError` on :c:func:`localtime` failure. It's common for this to be "
"restricted to years from 1970 through 2038. Note that on non-POSIX systems "
"that include leap seconds in their notion of a timestamp, leap seconds are "
"ignored by :meth:`fromtimestamp`."
msgstr ""
"这可能引发 :exc:`OverflowError`，如果时间戳数值超出所在平台 C :c:func:`localtime` "
"函数的支持范围的话，并且会在 :c:func:`localtime` 出错时引发 :exc:`OSError`。 通常该数值会被限制在 1970 年至 "
"2038 年之间。 请注意在时间戳概念包含闰秒的非 POSIX 系统上，闰秒会被 :meth:`fromtimestamp` 所忽略。"

#: ../../library/datetime.rst:504
msgid ""
"Raise :exc:`OverflowError` instead of :exc:`ValueError` if the timestamp is "
"out of the range of values supported by the platform C :c:func:`localtime` "
"function. Raise :exc:`OSError` instead of :exc:`ValueError` on "
":c:func:`localtime` failure."
msgstr ""
"引发 :exc:`OverflowError` 而不是 :exc:`ValueError`，如果时间戳数值超出所在平台 C "
":c:func:`localtime` 函数的支持范围的话，并会在 :c:func:`localtime` 出错时引发 :exc:`OSError` "
"而不是 :exc:`ValueError`。"

#: ../../library/datetime.rst:513
msgid ""
"Return the date corresponding to the proleptic Gregorian ordinal, where "
"January 1 of year 1 has ordinal 1."
msgstr "返回对应于预期格列高利历序号的日期，其中公元 1 年 1 月 1 日的序号为 1。"

#: ../../library/datetime.rst:516
msgid ""
":exc:`ValueError` is raised unless ``1 <= ordinal <= date.max.toordinal()``."
" For any date *d*, ``date.fromordinal(d.toordinal()) == d``."
msgstr ""
"除非 ``1 <= ordinal <= date.max.toordinal()`` 否则会引发 :exc:`ValueError`。对于任意日期 "
"*d*，``date.fromordinal(d.toordinal()) == d``。"

#: ../../library/datetime.rst:523
msgid ""
"Return a :class:`date` corresponding to a *date_string* given in the format "
"``YYYY-MM-DD``::"
msgstr "返回一个对应于以 ``YYYY-MM-DD`` 格式给出的 *date_string* 的 :class:`date` 对象::"

#: ../../library/datetime.rst:530
msgid ""
"This is the inverse of :meth:`date.isoformat`. It only supports the format "
"``YYYY-MM-DD``."
msgstr "这是 :meth:`date.isoformat` 的逆操作。 它只支持 ``YYYY-MM-DD`` 格式。"

#: ../../library/datetime.rst:538
msgid ""
"Return a :class:`date` corresponding to the ISO calendar date specified by "
"year, week and day. This is the inverse of the function "
":meth:`date.isocalendar`."
msgstr ""
"返回指定 year, week 和 day 所对应 ISO 历法日期的 :class:`date`。 这是函数 "
":meth:`date.isocalendar` 的逆操作。"

#: ../../library/datetime.rst:548
msgid "The earliest representable date, ``date(MINYEAR, 1, 1)``."
msgstr "最小的日期 ``date(MINYEAR, 1, 1)`` 。"

#: ../../library/datetime.rst:553
msgid "The latest representable date, ``date(MAXYEAR, 12, 31)``."
msgstr "最大的日期 ，``date(MAXYEAR, 12, 31)``。"

#: ../../library/datetime.rst:558
msgid ""
"The smallest possible difference between non-equal date objects, "
"``timedelta(days=1)``."
msgstr "两个日期对象的最小间隔，``timedelta(days=1)``。"

#: ../../library/datetime.rst:566 ../../library/datetime.rst:1075
msgid "Between :const:`MINYEAR` and :const:`MAXYEAR` inclusive."
msgstr "在 :const:`MINYEAR` 和 :const:`MAXYEAR` 之间，包含边界。"

#: ../../library/datetime.rst:571 ../../library/datetime.rst:1080
msgid "Between 1 and 12 inclusive."
msgstr "1 至 12（含）"

#: ../../library/datetime.rst:576 ../../library/datetime.rst:1085
msgid "Between 1 and the number of days in the given month of the given year."
msgstr "返回1到指定年月的天数间的数字。"

#: ../../library/datetime.rst:584
msgid "``date2 = date1 + timedelta``"
msgstr "``date2 = date1 + timedelta``"

#: ../../library/datetime.rst:584
msgid "*date2* is ``timedelta.days`` days removed from *date1*. (1)"
msgstr ""

#: ../../library/datetime.rst:587
msgid "``date2 = date1 - timedelta``"
msgstr "``date2 = date1 - timedelta``"

#: ../../library/datetime.rst:587
msgid "Computes *date2* such that ``date2 + timedelta == date1``. (2)"
msgstr "计算 *date2* 的值使得 ``date2 + timedelta == date1``。 (2)"

#: ../../library/datetime.rst:590
msgid "``timedelta = date1 - date2``"
msgstr "``timedelta = date1 - date2``"

#: ../../library/datetime.rst:590 ../../library/datetime.rst:1133
msgid "\\(3)"
msgstr "\\(3)"

#: ../../library/datetime.rst:592
msgid "``date1 < date2``"
msgstr "``date1 < date2``"

#: ../../library/datetime.rst:592
msgid ""
"*date1* is considered less than *date2* when *date1* precedes *date2* in "
"time. (4)"
msgstr "如果 *date1* 的时间在 *date2* 之前则认为 *date1* 小于 *date2* 。 (4)"

#: ../../library/datetime.rst:599
msgid ""
"*date2* is moved forward in time if ``timedelta.days > 0``, or backward if "
"``timedelta.days < 0``. Afterward ``date2 - date1 == timedelta.days``. "
"``timedelta.seconds`` and ``timedelta.microseconds`` are ignored. "
":exc:`OverflowError` is raised if ``date2.year`` would be smaller than "
":const:`MINYEAR` or larger than :const:`MAXYEAR`."
msgstr ""
"如果 ``timedelta.days > 0`` 则 *date2* 将在时间线上前进，如果 ``timedelta.days < 0`` 则将后退。"
" 操作完成后 ``date2 - date1 == timedelta.days``。 ``timedelta.seconds`` 和 "
"``timedelta.microseconds`` 会被忽略。 如果 ``date2.year`` 将小于 :const:`MINYEAR` 或大于 "
":const:`MAXYEAR` 则会引发 :exc:`OverflowError`。"

#: ../../library/datetime.rst:606
msgid "``timedelta.seconds`` and ``timedelta.microseconds`` are ignored."
msgstr "``timedelta.seconds`` 和 ``timedelta.microseconds`` 会被忽略。"

#: ../../library/datetime.rst:609
msgid ""
"This is exact, and cannot overflow. timedelta.seconds and "
"timedelta.microseconds are 0, and date2 + timedelta == date1 after."
msgstr ""
"此值完全精确且不会溢出。 操作完成后 timedelta.seconds 和 timedelta.microseconds 均为 0，并且 date2 "
"+ timedelta == date1。"

#: ../../library/datetime.rst:613
msgid ""
"In other words, ``date1 < date2`` if and only if ``date1.toordinal() < "
"date2.toordinal()``. Date comparison raises :exc:`TypeError` if the other "
"comparand isn't also a :class:`date` object. However, ``NotImplemented`` is "
"returned instead if the other comparand has a :meth:`timetuple` attribute. "
"This hook gives other kinds of date objects a chance at implementing mixed-"
"type comparison. If not, when a :class:`date` object is compared to an "
"object of a different type, :exc:`TypeError` is raised unless the comparison"
" is ``==`` or ``!=``. The latter cases return :const:`False` or "
":const:`True`, respectively."
msgstr ""
"换句话说，当且仅当 ``date1.toordinal() < date2.toordinal()`` 时 ``date1 < date2``。 "
"日期比较会引发 :exc:`TypeError`，如果比较目标不为 :class:`date` 对象的话。 不过也可能会返回 "
"``NotImplemented``，如果比较目标具有 :meth:`timetuple` 属性的话。 "
"这个钩子给予其他日期对象类型实现混合类型比较的机会。 否则，当 :class:`date` 对象与不同类型的对象比较时将会引发 "
":exc:`TypeError`，除非是 ``==`` 或 ``!=`` 比较。 后两种情况将分别返回 :const:`False` 或 "
":const:`True`。"

#: ../../library/datetime.rst:623
msgid ""
"In Boolean contexts, all :class:`date` objects are considered to be true."
msgstr "在布尔运算中，所有 :class:`date` 对象都会被视为真值。"

#: ../../library/datetime.rst:629
msgid ""
"Return a date with the same value, except for those parameters given new "
"values by whichever keyword arguments are specified."
msgstr "返回一个具有同样值的日期，除非通过任何关键字参数给出了某些形参的新值。"

#: ../../library/datetime.rst:632 ../../library/datetime.rst:1829
msgid "Example::"
msgstr "示例::"

#: ../../library/datetime.rst:642 ../../library/datetime.rst:1311
msgid ""
"Return a :class:`time.struct_time` such as returned by "
":func:`time.localtime`."
msgstr "返回一个 :class:`time.struct_time`，即 :func:`time.localtime` 所返回的类型。"

#: ../../library/datetime.rst:644
msgid "The hours, minutes and seconds are 0, and the DST flag is -1."
msgstr "hours, minutes 和 seconds 值均为 0，且 DST 旗标值为 -1。"

#: ../../library/datetime.rst:646 ../../library/datetime.rst:1313
msgid "``d.timetuple()`` is equivalent to::"
msgstr "``d.timetuple()`` 等价于::"

#: ../../library/datetime.rst:650
msgid ""
"where ``yday = d.toordinal() - date(d.year, 1, 1).toordinal() + 1`` is the "
"day number within the current year starting with ``1`` for January 1st."
msgstr ""
"其中 ``yday = d.toordinal() - date(d.year, 1, 1).toordinal() + 1`` "
"是当前年份中的日期序号，1 月 1 日的序号为 ``1``。"

#: ../../library/datetime.rst:656
msgid ""
"Return the proleptic Gregorian ordinal of the date, where January 1 of year "
"1 has ordinal 1. For any :class:`date` object *d*, "
"``date.fromordinal(d.toordinal()) == d``."
msgstr ""
"返回日期的预期格列高利历序号，其中公元 1 年 1 月 1 日的序号为 1。 对于任意 :class:`date` 对象 "
"*d*，``date.fromordinal(d.toordinal()) == d``。"

#: ../../library/datetime.rst:663
msgid ""
"Return the day of the week as an integer, where Monday is 0 and Sunday is 6."
" For example, ``date(2002, 12, 4).weekday() == 2``, a Wednesday. See also "
":meth:`isoweekday`."
msgstr ""
"返回一个整数代表星期几，星期一为0，星期天为6。例如， ``date(2002, 12, 4).weekday() == 2``，表示的是星期三。参阅 "
":meth:`isoweekday`。"

#: ../../library/datetime.rst:670
msgid ""
"Return the day of the week as an integer, where Monday is 1 and Sunday is 7."
" For example, ``date(2002, 12, 4).isoweekday() == 3``, a Wednesday. See also"
" :meth:`weekday`, :meth:`isocalendar`."
msgstr ""
"返回一个整数代表星期几，星期一为1，星期天为7。例如：``date(2002, 12, 4).isoweekday() == 3``,表示星期三。参见 "
":meth:`weekday`, :meth:`isocalendar`。"

#: ../../library/datetime.rst:677
msgid ""
"Return a :term:`named tuple` object with three components: ``year``, "
"``week`` and ``weekday``."
msgstr "返回一个由三部分组成的 :term:`named tuple` 对象: ``year``, ``week`` 和 ``weekday``。"

#: ../../library/datetime.rst:680
msgid ""
"The ISO calendar is a widely used variant of the Gregorian calendar. [#]_"
msgstr "ISO 历法是一种被广泛使用的格列高利历。 [#]_"

#: ../../library/datetime.rst:682
msgid ""
"The ISO year consists of 52 or 53 full weeks, and where a week starts on a "
"Monday and ends on a Sunday. The first week of an ISO year is the first "
"(Gregorian) calendar week of a year containing a Thursday. This is called "
"week number 1, and the ISO year of that Thursday is the same as its "
"Gregorian year."
msgstr ""
"ISO 年由 52 或 53 个完整星期构成，每个星期开始于星期一结束于星期日。 一个 ISO "
"年的第一个星期就是（格列高利）历法的一年中第一个包含星期四的星期。 这被称为 1 号星期，这个星期四所在的 ISO 年与其所在的格列高利年相同。"

#: ../../library/datetime.rst:687
msgid ""
"For example, 2004 begins on a Thursday, so the first week of ISO year 2004 "
"begins on Monday, 29 Dec 2003 and ends on Sunday, 4 Jan 2004::"
msgstr ""
"例如，2004 年的第一天是星期四，因此 ISO 2004 年的第一个星期开始于 2003 年 12 月 29 日星期一，结束于 2004 年 1 月 "
"4 日星期日::"

#: ../../library/datetime.rst:696
msgid "Result changed from a tuple to a :term:`named tuple`."
msgstr "结果由元组改为 :term:`named tuple`。"

#: ../../library/datetime.rst:701
msgid ""
"Return a string representing the date in ISO 8601 format, ``YYYY-MM-DD``::"
msgstr "返回一个以 ISO 8601 格式 ``YYYY-MM-DD`` 来表示日期的字符串::"

#: ../../library/datetime.rst:707
msgid "This is the inverse of :meth:`date.fromisoformat`."
msgstr "这是 :meth:`date.fromisoformat` 的逆操作。"

#: ../../library/datetime.rst:711
msgid "For a date *d*, ``str(d)`` is equivalent to ``d.isoformat()``."
msgstr "对于日期对象 *d*, ``str(d)`` 等价于 ``d.isoformat()`` 。"

#: ../../library/datetime.rst:716
msgid "Return a string representing the date::"
msgstr "返回一个表示日期的字符串::"

#: ../../library/datetime.rst:722 ../../library/datetime.rst:1497
msgid "``d.ctime()`` is equivalent to::"
msgstr "``d.ctime()`` 等效于::"

#: ../../library/datetime.rst:726
msgid ""
"on platforms where the native C :c:func:`ctime` function (which "
":func:`time.ctime` invokes, but which :meth:`date.ctime` does not invoke) "
"conforms to the C standard."
msgstr ""
"在原生 C :c:func:`ctime` 函数遵循 C 标准的平台上 (:func:`time.ctime` 会发起对该函数的调用，但 "
":meth:`date.ctime` 并不会) 。"

#: ../../library/datetime.rst:733
msgid ""
"Return a string representing the date, controlled by an explicit format "
"string. Format codes referring to hours, minutes or seconds will see 0 "
"values. For a complete list of formatting directives, see :ref:`strftime-"
"strptime-behavior`."
msgstr ""
"返回一个由显式格式字符串所指明的代表日期的字符串。 表示时、分或秒的格式代码值将为 0。 要获取格式指令的完整列表请参阅 :ref:`strftime-"
"strptime-behavior`。"

#: ../../library/datetime.rst:741
msgid ""
"Same as :meth:`.date.strftime`. This makes it possible to specify a format "
"string for a :class:`.date` object in :ref:`formatted string literals "
"<f-strings>` and when using :meth:`str.format`. For a complete list of "
"formatting directives, see :ref:`strftime-strptime-behavior`."
msgstr ""
"与 :meth:`.date.strftime` 相同。 此方法使得为 :class:`.date` 对象指定以 :ref:`格式化字符串字面值 "
"<f-strings>` 表示的格式化字符串以及使用 :meth:`str.format` 进行格式化成为可能。 要获取格式指令的完整列表，请参阅 "
":ref:`strftime-strptime-behavior`。"

#: ../../library/datetime.rst:748
msgid "Examples of Usage: :class:`date`"
msgstr ":class:`date` 用法示例"

#: ../../library/datetime.rst:750
msgid "Example of counting days to an event::"
msgstr "计算距离特定事件天数的例子::"

#: ../../library/datetime.rst:768
msgid "More examples of working with :class:`date`:"
msgstr "使用 :class:`date` 的更多例子："

#: ../../library/datetime.rst:817
msgid ":class:`.datetime` Objects"
msgstr ":class:`.datetime` 对象"

#: ../../library/datetime.rst:819
msgid ""
"A :class:`.datetime` object is a single object containing all the "
"information from a :class:`date` object and a :class:`.time` object."
msgstr ""
":class:`.datetime` 对象是包含来自 :class:`date` 对象和 :class:`.time` 对象的所有信息的单一对象。"

#: ../../library/datetime.rst:822
msgid ""
"Like a :class:`date` object, :class:`.datetime` assumes the current "
"Gregorian calendar extended in both directions; like a :class:`.time` "
"object, :class:`.datetime` assumes there are exactly 3600\\*24 seconds in "
"every day."
msgstr ""
"与 :class:`date` 对象一样，:class:`.datetime` 假定当前的格列高利历向前后两个方向无限延伸；与 "
":class:`.time` 对象一样，:class:`.datetime` 假定每一天恰好有 3600\\*24 秒。"

#: ../../library/datetime.rst:826
msgid "Constructor:"
msgstr "构造器 ："

#: ../../library/datetime.rst:830
msgid ""
"The *year*, *month* and *day* arguments are required. *tzinfo* may be "
"``None``, or an instance of a :class:`tzinfo` subclass. The remaining "
"arguments must be integers in the following ranges:"
msgstr ""
"*year*, *month* 和 *day* 参数是必须的。 *tzinfo* 可以是 ``None`` 或者是一个 :class:`tzinfo` "
"子类的实例。 其余的参数必须是在下面范围内的整数："

#: ../../library/datetime.rst:834
msgid "``MINYEAR <= year <= MAXYEAR``,"
msgstr "``MINYEAR <= year <= MAXYEAR``,"

#: ../../library/datetime.rst:835
msgid "``1 <= month <= 12``,"
msgstr "``1 <= month <= 12``,"

#: ../../library/datetime.rst:836
msgid "``1 <= day <= number of days in the given month and year``,"
msgstr "``1 <= day <= 指定年月的天数``,"

#: ../../library/datetime.rst:837 ../../library/datetime.rst:1660
msgid "``0 <= hour < 24``,"
msgstr "``0 <= hour < 24``,"

#: ../../library/datetime.rst:838 ../../library/datetime.rst:1661
msgid "``0 <= minute < 60``,"
msgstr "``0 <= minute < 60``,"

#: ../../library/datetime.rst:839 ../../library/datetime.rst:1662
msgid "``0 <= second < 60``,"
msgstr "``0 <= second < 60``,"

#: ../../library/datetime.rst:840 ../../library/datetime.rst:1663
msgid "``0 <= microsecond < 1000000``,"
msgstr "``0 <= microsecond < 1000000``,"

#: ../../library/datetime.rst:841 ../../library/datetime.rst:1664
msgid "``fold in [0, 1]``."
msgstr "``fold in [0, 1]``."

#: ../../library/datetime.rst:845 ../../library/datetime.rst:1232
#: ../../library/datetime.rst:1796
msgid "Added the ``fold`` argument."
msgstr "增加了 ``fold`` 参数。"

#: ../../library/datetime.rst:852
msgid "Return the current local datetime, with :attr:`.tzinfo` ``None``."
msgstr "返回表示当前地方时的 datetime 对象，其中 :attr:`.tzinfo` 为 ``None``。"

#: ../../library/datetime.rst:854
msgid "Equivalent to::"
msgstr "等价于::"

#: ../../library/datetime.rst:858
msgid "See also :meth:`now`, :meth:`fromtimestamp`."
msgstr "另请参阅 :meth:`now`, :meth:`fromtimestamp`。"

#: ../../library/datetime.rst:860
msgid ""
"This method is functionally equivalent to :meth:`now`, but without a ``tz`` "
"parameter."
msgstr "此方法的功能等价于 :meth:`now`，但是不带 ``tz`` 形参。"

#: ../../library/datetime.rst:865
msgid "Return the current local date and time."
msgstr "返回表示当前地方时的 date 和 time 对象。"

#: ../../library/datetime.rst:867
msgid ""
"If optional argument *tz* is ``None`` or not specified, this is like "
":meth:`today`, but, if possible, supplies more precision than can be gotten "
"from going through a :func:`time.time` timestamp (for example, this may be "
"possible on platforms supplying the C :c:func:`gettimeofday` function)."
msgstr ""
"如果可选参数 *tz* 为 ``None`` 或未指定，这就类似于 :meth:`today`，但该方法会在可能的情况下提供比通过 "
":func:`time.time` 时间戳所获时间值更高的精度（例如，在提供了 C :c:func:`gettimeofday` "
"函数的平台上就可以做到这一点）。"

#: ../../library/datetime.rst:873
msgid ""
"If *tz* is not ``None``, it must be an instance of a :class:`tzinfo` "
"subclass, and the current date and time are converted to *tz*’s time zone."
msgstr ""
"如果 *tz* 不为 ``None``，它必须是 :class:`tzinfo` 子类的一个实例，并且当前日期和时间将被转换到 *tz* 时区。"

#: ../../library/datetime.rst:876
msgid "This function is preferred over :meth:`today` and :meth:`utcnow`."
msgstr "此函数可以替代 :meth:`today` 和 :meth:`utcnow`。"

#: ../../library/datetime.rst:881
msgid "Return the current UTC date and time, with :attr:`.tzinfo` ``None``."
msgstr "返回表示当前 UTC 时间的 date 和 time，其中 :attr:`.tzinfo` 为 ``None``。"

#: ../../library/datetime.rst:883
msgid ""
"This is like :meth:`now`, but returns the current UTC date and time, as a "
"naive :class:`.datetime` object. An aware current UTC datetime can be "
"obtained by calling ``datetime.now(timezone.utc)``. See also :meth:`now`."
msgstr ""
"这类似于 :meth:`now`，但返回的是当前 UTC 日期和时间，类型为简单型 :class:`.datetime` 对象。 感知型的当前 UTC "
"日期时间可通过调用 ``datetime.now(timezone.utc)`` 来获得。 另请参阅 :meth:`now`。"

#: ../../library/datetime.rst:889
msgid ""
"Because naive ``datetime`` objects are treated by many ``datetime`` methods "
"as local times, it is preferred to use aware datetimes to represent times in"
" UTC. As such, the recommended way to create an object representing the "
"current time in UTC is by calling ``datetime.now(timezone.utc)``."
msgstr ""
"由于简单型 ``datetime`` 对象会被许多 ``datetime`` 方法当作本地时间来处理，最好是使用感知型日期时间对象来表示 UTC 时间。"
" 因此，创建表示当前 UTC 时间的对象的推荐方式是通过调用 ``datetime.now(timezone.utc)``。"

#: ../../library/datetime.rst:897
msgid ""
"Return the local date and time corresponding to the POSIX timestamp, such as"
" is returned by :func:`time.time`. If optional argument *tz* is ``None`` or "
"not specified, the timestamp is converted to the platform's local date and "
"time, and the returned :class:`.datetime` object is naive."
msgstr ""
"返回 POSIX 时间戳对应的本地日期和时间，如 :func:`time.time` 返回的。 如果可选参数 *tz* 指定为 ``None`` "
"或未指定，时间戳将转换为平台的本地日期和时间，并且返回的 :class:`.datetime` 对象将为简单型。"

#: ../../library/datetime.rst:902
msgid ""
"If *tz* is not ``None``, it must be an instance of a :class:`tzinfo` "
"subclass, and the timestamp is converted to *tz*’s time zone."
msgstr ""
"如果 *tz* 不为 ``None``，它必须是 :class:`tzinfo` 子类的一个实例，并且时间戳将被转换到 *tz* 指定的时区。"

#: ../../library/datetime.rst:905
msgid ""
":meth:`fromtimestamp` may raise :exc:`OverflowError`, if the timestamp is "
"out of the range of values supported by the platform C :c:func:`localtime` "
"or :c:func:`gmtime` functions, and :exc:`OSError` on :c:func:`localtime` or "
":c:func:`gmtime` failure. It's common for this to be restricted to years in "
"1970 through 2038. Note that on non-POSIX systems that include leap seconds "
"in their notion of a timestamp, leap seconds are ignored by "
":meth:`fromtimestamp`, and then it's possible to have two timestamps "
"differing by a second that yield identical :class:`.datetime` objects. This "
"method is preferred over :meth:`utcfromtimestamp`."
msgstr ""
":meth:`fromtimestamp` 可能会引发 :exc:`OverflowError`，如果时间戳数值超出所在平台 C "
":c:func:`localtime` 或 :c:func:`gmtime` 函数的支持范围的话，并会在 :c:func:`localtime` 或 "
":c:func:`gmtime` 报错时引发 :exc:`OSError`。 通常该数值会被限制在 1970 年至 2038 年之间。 "
"请注意在时间戳概念包含闰秒的非 POSIX 系统上，闰秒会被 :meth:`fromtimestamp` "
"所忽略，结果可能导致两个相差一秒的时间戳产生相同的 :class:`.datetime` 对象。 相比 :meth:`utcfromtimestamp`"
" 更推荐使用此方法。"

#: ../../library/datetime.rst:916
msgid ""
"Raise :exc:`OverflowError` instead of :exc:`ValueError` if the timestamp is "
"out of the range of values supported by the platform C :c:func:`localtime` "
"or :c:func:`gmtime` functions. Raise :exc:`OSError` instead of "
":exc:`ValueError` on :c:func:`localtime` or :c:func:`gmtime` failure."
msgstr ""
"引发 :exc:`OverflowError` 而不是 :exc:`ValueError`，如果时间戳数值超出所在平台 C "
":c:func:`localtime` 或 :c:func:`gmtime` 函数的支持范围的话。 并会在 :c:func:`localtime` 或 "
":c:func:`gmtime` 出错时引发 :exc:`OSError` 而不是 :exc:`ValueError`。"

#: ../../library/datetime.rst:923
msgid ""
":meth:`fromtimestamp` may return instances with :attr:`.fold` set to 1."
msgstr ":meth:`fromtimestamp` 可能返回 :attr:`.fold` 值设为 1 的实例。"

#: ../../library/datetime.rst:928
msgid ""
"Return the UTC :class:`.datetime` corresponding to the POSIX timestamp, with"
" :attr:`.tzinfo` ``None``.  (The resulting object is naive.)"
msgstr ""
"返回对应于 POSIX 时间戳的 UTC :class:`.datetime`，其中 :attr:`.tzinfo` 值为 ``None``。 "
"（结果为简单型对象。）"

#: ../../library/datetime.rst:931
msgid ""
"This may raise :exc:`OverflowError`, if the timestamp is out of the range of"
" values supported by the platform C :c:func:`gmtime` function, and "
":exc:`OSError` on :c:func:`gmtime` failure. It's common for this to be "
"restricted to years in 1970 through 2038."
msgstr ""
"这可能引发 :exc:`OverflowError`，如果时间戳数值超出所在平台 C :c:func:`gmtime` 函数的支持范围的话，并会在 "
":c:func:`gmtime` 报错时引发 :exc:`OSError`。 通常该数值会被限制在 1970 至 2038 年之间。"

#: ../../library/datetime.rst:936
msgid ""
"To get an aware :class:`.datetime` object, call :meth:`fromtimestamp`::"
msgstr "要得到一个感知型 :class:`.datetime` 对象，应调用 :meth:`fromtimestamp`::"

#: ../../library/datetime.rst:940
msgid ""
"On the POSIX compliant platforms, it is equivalent to the following "
"expression::"
msgstr "在 POSIX 兼容的平台上，它等价于以下表达式::"

#: ../../library/datetime.rst:945
msgid ""
"except the latter formula always supports the full years range: between "
":const:`MINYEAR` and :const:`MAXYEAR` inclusive."
msgstr "不同之处在于后一种形式总是支持完整年份范围：从 :const:`MINYEAR` 到 :const:`MAXYEAR` 的开区间。"

#: ../../library/datetime.rst:950
msgid ""
"Because naive ``datetime`` objects are treated by many ``datetime`` methods "
"as local times, it is preferred to use aware datetimes to represent times in"
" UTC. As such, the recommended way to create an object representing a "
"specific timestamp in UTC is by calling ``datetime.fromtimestamp(timestamp, "
"tz=timezone.utc)``."
msgstr ""
"由于简单型 ``datetime`` 对象会被许多 ``datetime`` 方法当作本地时间来处理，最好是使用感知型日期时间对象来表示 UTC 时间。"
" 因此，创建表示特定 UTC 时间戳的日期时间对象的推荐方式是通过调用 ``datetime.fromtimestamp(timestamp, "
"tz=timezone.utc)``。"

#: ../../library/datetime.rst:956
msgid ""
"Raise :exc:`OverflowError` instead of :exc:`ValueError` if the timestamp is "
"out of the range of values supported by the platform C :c:func:`gmtime` "
"function. Raise :exc:`OSError` instead of :exc:`ValueError` on "
":c:func:`gmtime` failure."
msgstr ""
"引发 :exc:`OverflowError` 而不是 :exc:`ValueError`，如果时间戳数值超出所在平台 C "
":c:func:`gmtime` 函数的支持范围的话。 并会在 :c:func:`gmtime` 出错时引发 :exc:`OSError` 而不是 "
":exc:`ValueError`。"

#: ../../library/datetime.rst:965
msgid ""
"Return the :class:`.datetime` corresponding to the proleptic Gregorian "
"ordinal, where January 1 of year 1 has ordinal 1. :exc:`ValueError` is "
"raised unless ``1 <= ordinal <= datetime.max.toordinal()``. The hour, "
"minute, second and microsecond of the result are all 0, and :attr:`.tzinfo` "
"is ``None``."
msgstr ""
"返回对应于预期格列高利历序号的 :class:`.datetime`，其中公元 1 年 1 月 1 日的序号为 1。 除非 ``1 <= ordinal"
" <= datetime.max.toordinal()`` 否则会引发 :exc:`ValueError`。 结果的 hour, minute, "
"second 和 microsecond 值均为 0，并且 :attr:`.tzinfo` 值为 ``None``。"

#: ../../library/datetime.rst:973
msgid ""
"Return a new :class:`.datetime` object whose date components are equal to "
"the given :class:`date` object's, and whose time components are equal to the"
" given :class:`.time` object's. If the *tzinfo* argument is provided, its "
"value is used to set the :attr:`.tzinfo` attribute of the result, otherwise "
"the :attr:`~.time.tzinfo` attribute of the *time* argument is used."
msgstr ""
"返回一个新的 :class:`.datetime` 对象，对象的日期部分等于给定的 :class:`date` 对象的值，而其时间部分等于给定的 "
":class:`.time` 对象的值。 如果提供了 *tzinfo* 参数，其值会被用来设置结果的 :attr:`.tzinfo` 属性，否则将使用 "
"*time* 参数的 :attr:`~.time.tzinfo` 属性。"

#: ../../library/datetime.rst:980
msgid ""
"For any :class:`.datetime` object *d*, ``d == datetime.combine(d.date(), "
"d.time(), d.tzinfo)``. If date is a :class:`.datetime` object, its time "
"components and :attr:`.tzinfo` attributes are ignored."
msgstr ""
"对于任意 :class:`.datetime` 对象 *d*，``d == datetime.combine(d.date(), d.time(), "
"d.tzinfo)``。 如果 date 是一个 :class:`.datetime` 对象，它的时间部分和 :attr:`.tzinfo` "
"属性会被忽略。"

#: ../../library/datetime.rst:985
msgid "Added the *tzinfo* argument."
msgstr "增加了 *tzinfo* 参数。"

#: ../../library/datetime.rst:991
msgid ""
"Return a :class:`.datetime` corresponding to a *date_string* in one of the "
"formats emitted by :meth:`date.isoformat` and :meth:`datetime.isoformat`."
msgstr ""
"返回一个对应于 :meth:`date.isoformat` 和 :meth:`datetime.isoformat` 所提供的某一种 "
"*date_string* 的 :class:`.datetime` 对象。"

#: ../../library/datetime.rst:994
msgid "Specifically, this function supports strings in the format:"
msgstr "特别地，此函数支持以下格式的字符串："

#: ../../library/datetime.rst:1000
msgid "where ``*`` can match any single character."
msgstr "其中 ``*`` 可以匹配任意的单个字符。"

#: ../../library/datetime.rst:1004
msgid ""
"This does *not* support parsing arbitrary ISO 8601 strings - it is only "
"intended as the inverse operation of :meth:`datetime.isoformat`. A more "
"full-featured ISO 8601 parser, ``dateutil.parser.isoparse`` is available in "
"the third-party package `dateutil "
"<https://dateutil.readthedocs.io/en/stable/parser.html#dateutil.parser.isoparse>`__."
msgstr ""
"此函数 *并不* 支持解析任意 ISO 8601 字符串 —— 它的目的只是作为 :meth:`datetime.isoformat` 的逆操作。 "
"在第三方包 `dateutil "
"<https://dateutil.readthedocs.io/en/stable/parser.html#dateutil.parser.isoparse>`__"
" 中提供了一个更完善的 ISO 8601 解析器 ``dateutil.parser.isoparse``。"

#: ../../library/datetime.rst:1009 ../../library/datetime.rst:1426
#: ../../library/datetime.rst:1773
msgid "Examples::"
msgstr "示例::"

#: ../../library/datetime.rst:1028
msgid ""
"Return a :class:`.datetime` corresponding to the ISO calendar date specified"
" by year, week and day. The non-date components of the datetime are "
"populated with their normal default values. This is the inverse of the "
"function :meth:`datetime.isocalendar`."
msgstr ""
"返回以 year, week 和 day 值指明的 ISO 历法日期所对应的 :class:`.datetime`。 该datetime "
"对象的非日期部分将使用其标准默认值来填充。 这是函数 :meth:`datetime.isocalendar` 的逆操作。"

#: ../../library/datetime.rst:1037
msgid ""
"Return a :class:`.datetime` corresponding to *date_string*, parsed according"
" to *format*."
msgstr "返回一个对应于 *date_string*，根据 *format* 进行解析得到的 :class:`.datetime` 对象。"

#: ../../library/datetime.rst:1040
msgid "This is equivalent to::"
msgstr "这相当于："

#: ../../library/datetime.rst:1044
msgid ""
":exc:`ValueError` is raised if the date_string and format can't be parsed by"
" :func:`time.strptime` or if it returns a value which isn't a time tuple. "
"For a complete list of formatting directives, see :ref:`strftime-strptime-"
"behavior`."
msgstr ""
"如果 date_string 和 format 无法被 :func:`time.strptime` 解析或它返回一个不是时间元组的值，则将引发 "
":exc:`ValueError`。 要获取格式化指令的完整列表，请参阅 :ref:`strftime-strptime-behavior`。"

#: ../../library/datetime.rst:1055
msgid ""
"The earliest representable :class:`.datetime`, ``datetime(MINYEAR, 1, 1, "
"tzinfo=None)``."
msgstr "最早的可表示 :class:`.datetime`，``datetime(MINYEAR, 1, 1, tzinfo=None)``。"

#: ../../library/datetime.rst:1061
msgid ""
"The latest representable :class:`.datetime`, ``datetime(MAXYEAR, 12, 31, 23,"
" 59, 59, 999999, tzinfo=None)``."
msgstr ""
"最晚的可表示 :class:`.datetime`，``datetime(MAXYEAR, 12, 31, 23, 59, 59, 999999, "
"tzinfo=None)``。"

#: ../../library/datetime.rst:1067
msgid ""
"The smallest possible difference between non-equal :class:`.datetime` "
"objects, ``timedelta(microseconds=1)``."
msgstr "两个不相等的 :class:`.datetime` 对象之间可能的最小间隔，``timedelta(microseconds=1)``。"

#: ../../library/datetime.rst:1090 ../../library/datetime.rst:1693
msgid "In ``range(24)``."
msgstr "取值范围是 ``range(24)``。"

#: ../../library/datetime.rst:1095 ../../library/datetime.rst:1100
#: ../../library/datetime.rst:1698 ../../library/datetime.rst:1703
msgid "In ``range(60)``."
msgstr "取值范围是 ``range(60)``。"

#: ../../library/datetime.rst:1105 ../../library/datetime.rst:1708
msgid "In ``range(1000000)``."
msgstr "取值范围是 ``range(1000000)``。"

#: ../../library/datetime.rst:1110
msgid ""
"The object passed as the *tzinfo* argument to the :class:`.datetime` "
"constructor, or ``None`` if none was passed."
msgstr "作为 *tzinfo* 参数被传给 :class:`.datetime` 构造器的对象，如果没有传入值则为 ``None``。"

#: ../../library/datetime.rst:1116 ../../library/datetime.rst:1719
msgid ""
"In ``[0, 1]``. Used to disambiguate wall times during a repeated interval. "
"(A repeated interval occurs when clocks are rolled back at the end of "
"daylight saving time or when the UTC offset for the current zone is "
"decreased for political reasons.) The value 0 (1) represents the earlier "
"(later) of the two moments with the same wall time representation."
msgstr ""
"取值范围是 ``[0, 1]``。 用于在重复的时间段中消除边界时间歧义。 （当夏令时结束时回拨时钟或由于政治原因导致当明时区的 UTC "
"时差减少就会出现重复的时间段。） 取值 0 (1) 表示两个时刻早于（晚于）所代表的同一边界时间。"

#: ../../library/datetime.rst:1129
msgid "``datetime2 = datetime1 + timedelta``"
msgstr "``datetime2 = datetime1 + timedelta``"

#: ../../library/datetime.rst:1129 ../../library/datetime.rst:2310
#: ../../library/datetime.rst:2315 ../../library/datetime.rst:2327
#: ../../library/datetime.rst:2332 ../../library/datetime.rst:2392
#: ../../library/datetime.rst:2397 ../../library/datetime.rst:2401
msgid "\\(1)"
msgstr "\\(1)"

#: ../../library/datetime.rst:1131
msgid "``datetime2 = datetime1 - timedelta``"
msgstr "``datetime2 = datetime1 - timedelta``"

#: ../../library/datetime.rst:1131 ../../library/datetime.rst:2343
msgid "\\(2)"
msgstr "\\(2)"

#: ../../library/datetime.rst:1133
msgid "``timedelta = datetime1 - datetime2``"
msgstr "``timedelta = datetime1 - datetime2``"

#: ../../library/datetime.rst:1135
msgid "``datetime1 < datetime2``"
msgstr "``datetime1 < datetime2``"

#: ../../library/datetime.rst:1135
msgid "Compares :class:`.datetime` to :class:`.datetime`. (4)"
msgstr "比较 :class:`.datetime` 与 :class:`.datetime`。 (4)"

#: ../../library/datetime.rst:1140
msgid ""
"datetime2 is a duration of timedelta removed from datetime1, moving forward "
"in time if ``timedelta.days`` > 0, or backward if ``timedelta.days`` < 0. "
"The result has the same :attr:`~.datetime.tzinfo` attribute as the input "
"datetime, and datetime2 - datetime1 == timedelta after. :exc:`OverflowError`"
" is raised if datetime2.year would be smaller than :const:`MINYEAR` or "
"larger than :const:`MAXYEAR`. Note that no time zone adjustments are done "
"even if the input is an aware object."
msgstr ""
"datetime2 是从 datetime1 去掉了一段 timedelta 的结果，如果 ``timedelta.days`` > 0 "
"则是在时间线上前进，如果 ``timedelta.days`` < 0 则是在时间线上后退。 该结果具有与输入的 datetime 相同的 "
":attr:`~.datetime.tzinfo` 属性，并且操作完成后 datetime2 - datetime1 == timedelta。 如果 "
"datetime2.year 将要小于 :const:`MINYEAR` 或大于 :const:`MAXYEAR` 则会引发 "
":exc:`OverflowError`。 请注意即使输入的是一个感知型对象，该方法也不会进行时区调整。"

#: ../../library/datetime.rst:1149
msgid ""
"Computes the datetime2 such that datetime2 + timedelta == datetime1. As for "
"addition, the result has the same :attr:`~.datetime.tzinfo` attribute as the"
" input datetime, and no time zone adjustments are done even if the input is "
"aware."
msgstr ""
"计算 datetime2 使得 datetime2 + timedelta == datetime1。 与相加操作一样，结果具有与输入的 "
"datetime 相同的 :attr:`~.datetime.tzinfo` 属性，即使输入的是一个感知型对象，该方法也不会进行时区调整。"

#: ../../library/datetime.rst:1154
msgid ""
"Subtraction of a :class:`.datetime` from a :class:`.datetime` is defined "
"only if both operands are naive, or if both are aware. If one is aware and "
"the other is naive, :exc:`TypeError` is raised."
msgstr ""
"从一个 :class:`.datetime` 减去一个 :class:`.datetime` 仅对两个操作数均为简单型或均为感知型时有定义。 "
"如果一个是感知型而另一个是简单型，则会引发 :exc:`TypeError`。"

#: ../../library/datetime.rst:1158
msgid ""
"If both are naive, or both are aware and have the same "
":attr:`~.datetime.tzinfo` attribute, the :attr:`~.datetime.tzinfo` "
"attributes are ignored, and the result is a :class:`timedelta` object *t* "
"such that ``datetime2 + t == datetime1``. No time zone adjustments are done "
"in this case."
msgstr ""
"如果两个操作数都是简单型，或都是感知型并且具有相同的 :attr:`~.datetime.tzinfo` 属性，则 "
":attr:`~.datetime.tzinfo` 属性会被忽略，并且结果会是一个使得 ``datetime2 + t == datetime1`` 的"
" :class:`timedelta` 对象 *t*。 在此情况下不会进行时区调整。"

#: ../../library/datetime.rst:1163
msgid ""
"If both are aware and have different :attr:`~.datetime.tzinfo` attributes, "
"``a-b`` acts as if *a* and *b* were first converted to naive UTC datetimes "
"first. The result is ``(a.replace(tzinfo=None) - a.utcoffset()) - "
"(b.replace(tzinfo=None) - b.utcoffset())`` except that the implementation "
"never overflows."
msgstr ""
"如果两个操作数都是感知型且具有不同的 :attr:`~.datetime.tzinfo` 属性，``a-b`` 操作的效果就如同 *a* 和 *b* "
"首先被转换为简单型 UTC 日期时间。 结果将是 ``(a.replace(tzinfo=None) - a.utcoffset()) - "
"(b.replace(tzinfo=None) - b.utcoffset())``，除非具体实现绝对不溢出。"

#: ../../library/datetime.rst:1169
msgid ""
"*datetime1* is considered less than *datetime2* when *datetime1* precedes "
"*datetime2* in time."
msgstr "当 *datetime1* 的时间在 *datetime2* 之前则认为 *datetime1* 小于 *datetime2*。"

#: ../../library/datetime.rst:1172
msgid ""
"If one comparand is naive and the other is aware, :exc:`TypeError` is raised"
" if an order comparison is attempted. For equality comparisons, naive "
"instances are never equal to aware instances."
msgstr ""
"如果比较的一方是简单型而另一方是感知型，则如果尝试进行顺序比较将引发 :exc:`TypeError`。 "
"对于相等比较，简单型实例将永远不等于感知型实例。"

#: ../../library/datetime.rst:1176
msgid ""
"If both comparands are aware, and have the same :attr:`~.datetime.tzinfo` "
"attribute, the common :attr:`~.datetime.tzinfo` attribute is ignored and the"
" base datetimes are compared. If both comparands are aware and have "
"different :attr:`~.datetime.tzinfo` attributes, the comparands are first "
"adjusted by subtracting their UTC offsets (obtained from "
"``self.utcoffset()``)."
msgstr ""
"如果两个比较方都是感知型，且具有相同的 :attr:`~.datetime.tzinfo` 属性，则相同的 "
":attr:`~.datetime.tzinfo` 属性会被忽略并对基本日期时间值进行比较。 如果两个比较方都是感知型且具有不同的 "
":attr:`~.datetime.tzinfo` 属性，则两个比较方将首先通过减去它们的 UTC 差值（使用 ``self.utcoffset()``"
" 获取）来进行调整。"

#: ../../library/datetime.rst:1182
msgid ""
"Equality comparisons between aware and naive :class:`.datetime` instances "
"don't raise :exc:`TypeError`."
msgstr "感知型和简单型 :class:`.datetime` 实例之间的相等比较不会引发 :exc:`TypeError`。"

#: ../../library/datetime.rst:1188
msgid ""
"In order to stop comparison from falling back to the default scheme of "
"comparing object addresses, datetime comparison normally raises "
":exc:`TypeError` if the other comparand isn't also a :class:`.datetime` "
"object. However, ``NotImplemented`` is returned instead if the other "
"comparand has a :meth:`timetuple` attribute. This hook gives other kinds of "
"date objects a chance at implementing mixed-type comparison. If not, when a "
":class:`.datetime` object is compared to an object of a different type, "
":exc:`TypeError` is raised unless the comparison is ``==`` or ``!=``. The "
"latter cases return :const:`False` or :const:`True`, respectively."
msgstr ""
"为了防止比较操作回退为默认的对象地址比较方式，datetime 比较通常会引发 :exc:`TypeError`，如果比较目标不同样为 "
":class:`.datetime` 对象的话。 不过也可能会返回 ``NotImplemented``，如果比较目标具有 "
":meth:`timetuple` 属性的话。 这个钩子给予其他种类的日期对象实现混合类型比较的机会。 如果未实现，则当 "
":class:`.datetime` 对象与不同类型比较时将会引发 :exc:`TypeError`，除非是 ``==`` 或 ``!=`` 比较。 "
"后两种情况将分别返回 :const:`False` 或 :const:`True`。"

#: ../../library/datetime.rst:1202
msgid "Return :class:`date` object with same year, month and day."
msgstr "返回具有同样 year, month 和 day 值的 :class:`date` 对象。"

#: ../../library/datetime.rst:1207
msgid ""
"Return :class:`.time` object with same hour, minute, second, microsecond and"
" fold. :attr:`.tzinfo` is ``None``. See also method :meth:`timetz`."
msgstr ""
"返回具有同样 hour, minute, second, microsecond 和 fold 值的 :class:`.time` 对象。 "
":attr:`.tzinfo` 值为 ``None``。 另请参见 :meth:`timetz` 方法。"

#: ../../library/datetime.rst:1210 ../../library/datetime.rst:1219
msgid "The fold value is copied to the returned :class:`.time` object."
msgstr "fold 值会被复制给返回的 :class:`.time` 对象。"

#: ../../library/datetime.rst:1216
msgid ""
"Return :class:`.time` object with same hour, minute, second, microsecond, "
"fold, and tzinfo attributes. See also method :meth:`time`."
msgstr ""
"返回具有同样 hour, minute, second, microsecond, fold 和 tzinfo 属性性的 :class:`.time` "
"对象。 另请参见 :meth:`time` 方法。"

#: ../../library/datetime.rst:1227
msgid ""
"Return a datetime with the same attributes, except for those attributes "
"given new values by whichever keyword arguments are specified. Note that "
"``tzinfo=None`` can be specified to create a naive datetime from an aware "
"datetime with no conversion of date and time data."
msgstr ""
"返回一个具有同样属性值的 datetime，除非通过任何关键字参数为某些属性指定了新值。 请注意可以通过指定 ``tzinfo=None`` "
"来从一个感知型 datetime 创建一个简单型 datetime 而不必转换日期和时间数据。"

#: ../../library/datetime.rst:1238
msgid ""
"Return a :class:`.datetime` object with new :attr:`.tzinfo` attribute *tz*, "
"adjusting the date and time data so the result is the same UTC time as "
"*self*, but in *tz*'s local time."
msgstr ""
"返回一个具有新的 :attr:`.tzinfo` 属性 *tz* 的 :class:`.datetime` 对象，并会调整日期和时间数据使得结果对应的 "
"UTC 时间与 *self* 相同，但为 *tz* 时区的本地时间。"

#: ../../library/datetime.rst:1242
msgid ""
"If provided, *tz* must be an instance of a :class:`tzinfo` subclass, and its"
" :meth:`utcoffset` and :meth:`dst` methods must not return ``None``. If "
"*self* is naive, it is presumed to represent time in the system timezone."
msgstr ""
"如果给出了 *tz*，则它必须是一个 :class:`tzinfo` 子类的实例，并且其 :meth:`utcoffset` 和 :meth:`dst`"
" 方法不可返回 ``None``。 如果 *self* 为简单型，它会被假定为基于系统时区表示的时间。"

#: ../../library/datetime.rst:1246
msgid ""
"If called without arguments (or with ``tz=None``) the system local timezone "
"is assumed for the target timezone. The ``.tzinfo`` attribute of the "
"converted datetime instance will be set to an instance of :class:`timezone` "
"with the zone name and offset obtained from the OS."
msgstr ""
"如果调用时不传入参数 (或传入 ``tz=None``) 则将假定目标时区为系统的本地时区。 转换后 datetime 实例的 ``.tzinfo`` "
"属性将被设为一个 :class:`timezone` 实例，时区名称和时差值将从 OS 获取。"

#: ../../library/datetime.rst:1251
msgid ""
"If ``self.tzinfo`` is *tz*, ``self.astimezone(tz)`` is equal to *self*:  no "
"adjustment of date or time data is performed. Else the result is local time "
"in the timezone *tz*, representing the same UTC time as *self*:  after "
"``astz = dt.astimezone(tz)``, ``astz - astz.utcoffset()`` will have the same"
" date and time data as ``dt - dt.utcoffset()``."
msgstr ""
"如果 ``self.tzinfo`` 为 *tz*，``self.astimezone(tz)`` 等于 *self*: 不会对日期或时间数据进行调整。"
" 否则结果为 *tz* 时区的本地时间，代表的 UTC 时间与 *self* 相同：在 ``astz = dt.astimezone(tz)`` "
"之后，``astz - astz.utcoffset()`` 将具有与 ``dt - dt.utcoffset()`` 相同的日期和时间数据。"

#: ../../library/datetime.rst:1257
msgid ""
"If you merely want to attach a time zone object *tz* to a datetime *dt* "
"without adjustment of date and time data, use ``dt.replace(tzinfo=tz)``. If "
"you merely want to remove the time zone object from an aware datetime *dt* "
"without conversion of date and time data, use ``dt.replace(tzinfo=None)``."
msgstr ""
"如果你只是想要附加一个时区对象 *tz* 到一个 datetime 对象 *dt* 而不调整日期和时间数据，请使用 "
"``dt.replace(tzinfo=tz)``。 如果你只想从一个感知型 datetime 对象 *dt* 移除时区对象，请使用 "
"``dt.replace(tzinfo=None)``。"

#: ../../library/datetime.rst:1262
msgid ""
"Note that the default :meth:`tzinfo.fromutc` method can be overridden in a "
":class:`tzinfo` subclass to affect the result returned by "
":meth:`astimezone`. Ignoring error cases, :meth:`astimezone` acts like::"
msgstr ""
"请注意默认的 :meth:`tzinfo.fromutc` 方法在 :class:`tzinfo` 的子类中可以被重写，从而影响 "
":meth:`astimezone` 的返回结果。 如果忽略出错的情况，:meth:`astimezone` 的行为就类似于::"

#: ../../library/datetime.rst:1274
msgid "*tz* now can be omitted."
msgstr "*tz* 现在可以被省略。"

#: ../../library/datetime.rst:1277
msgid ""
"The :meth:`astimezone` method can now be called on naive instances that are "
"presumed to represent system local time."
msgstr ":meth:`astimezone` 方法可以由简单型实例调用，这将假定其表示本地时间。"

#: ../../library/datetime.rst:1284
msgid ""
"If :attr:`.tzinfo` is ``None``, returns ``None``, else returns "
"``self.tzinfo.utcoffset(self)``, and raises an exception if the latter "
"doesn't return ``None`` or a :class:`timedelta` object with magnitude less "
"than one day."
msgstr ""
"如果 :attr:`.tzinfo` 为 ``None``，则返回 ``None``，否则返回 "
"``self.tzinfo.utcoffset(self)``，并且在后者不返回 ``None`` 或者一个幅度小于一天的 "
":class:`timedelta` 对象时将引发异常。"

#: ../../library/datetime.rst:1288 ../../library/datetime.rst:1871
#: ../../library/datetime.rst:1977 ../../library/datetime.rst:2222
#: ../../library/datetime.rst:2234 ../../library/datetime.rst:2531
msgid "The UTC offset is not restricted to a whole number of minutes."
msgstr "UTC 时差不再限制为一个整数分钟值。"

#: ../../library/datetime.rst:1294
msgid ""
"If :attr:`.tzinfo` is ``None``, returns ``None``, else returns "
"``self.tzinfo.dst(self)``, and raises an exception if the latter doesn't "
"return ``None`` or a :class:`timedelta` object with magnitude less than one "
"day."
msgstr ""
"如果 :attr:`.tzinfo` 为 ``None``，则返回 ``None``，否则返回 "
"``self.tzinfo.dst(self)``，并且在后者不返回 ``None`` 或者一个幅度小于一天的 :class:`timedelta` "
"对象时将引发异常。"

#: ../../library/datetime.rst:1298 ../../library/datetime.rst:1881
#: ../../library/datetime.rst:2031
msgid "The DST offset is not restricted to a whole number of minutes."
msgstr "DST 差值不再限制为一个整数分钟值。"

#: ../../library/datetime.rst:1304
msgid ""
"If :attr:`.tzinfo` is ``None``, returns ``None``, else returns "
"``self.tzinfo.tzname(self)``, raises an exception if the latter doesn't "
"return ``None`` or a string object,"
msgstr ""
"如果 :attr:`.tzinfo` 为 ``None``，则返回 ``None``，否则返回 "
"``self.tzinfo.tzname(self)``，如果后者不返回 ``None`` 或者一个字符串对象则将引发异常。"

#: ../../library/datetime.rst:1319
msgid ""
"where ``yday = d.toordinal() - date(d.year, 1, 1).toordinal() + 1`` is the "
"day number within the current year starting with ``1`` for January 1st. The "
":attr:`tm_isdst` flag of the result is set according to the :meth:`dst` "
"method: :attr:`.tzinfo` is ``None`` or :meth:`dst` returns ``None``, "
":attr:`tm_isdst` is set to ``-1``; else if :meth:`dst` returns a non-zero "
"value, :attr:`tm_isdst` is set to ``1``; else :attr:`tm_isdst` is set to "
"``0``."
msgstr ""
"其中 ``yday = d.toordinal() - date(d.year, 1, 1).toordinal() + 1`` "
"是日期在当前年份中的序号，起始序号 ``1`` 表示 1 月 1 日。 结果的 :attr:`tm_isdst` 旗标的设定会依据 "
":meth:`dst` 方法：如果 :attr:`.tzinfo` 为 ``None`` 或 :meth:`dst` 返回 ``None``，则 "
":attr:`tm_isdst` 将设为 ``-1``；否则如果 :meth:`dst` 返回一个非零值，则 :attr:`tm_isdst` 将设为 "
"``1``；在其他情况下 :attr:`tm_isdst` 将设为 ``0``。"

#: ../../library/datetime.rst:1330
msgid ""
"If :class:`.datetime` instance *d* is naive, this is the same as "
"``d.timetuple()`` except that :attr:`tm_isdst` is forced to 0 regardless of "
"what ``d.dst()`` returns. DST is never in effect for a UTC time."
msgstr ""
"如果 :class:`.datetime` 实例 *d* 为简单型，这类似于 ``d.timetuple()``，不同之处在于 "
":attr:`tm_isdst` 会强制设为 0，无论 ``d.dst()`` 返回什么结果。 DST 对于 UTC 时间永远无效。"

#: ../../library/datetime.rst:1334
msgid ""
"If *d* is aware, *d* is normalized to UTC time, by subtracting "
"``d.utcoffset()``, and a :class:`time.struct_time` for the normalized time "
"is returned. :attr:`tm_isdst` is forced to 0. Note that an "
":exc:`OverflowError` may be raised if *d*.year was ``MINYEAR`` or "
"``MAXYEAR`` and UTC adjustment spills over a year boundary."
msgstr ""
"如果 *d* 为感知型， *d* 会通过减去 ``d.utcoffset()`` 来标准化为 UTC 时间，并返回该标准化时间所对应的 "
":class:`time.struct_time`。 :attr:`tm_isdst` 会强制设为 0。 请注意如果 *d*.year 为 "
"``MINYEAR`` 或 ``MAXYEAR`` 并且 UTC 调整超出一年的边界则可能引发 :exc:`OverflowError`。"

#: ../../library/datetime.rst:1343
msgid ""
"Because naive ``datetime`` objects are treated by many ``datetime`` methods "
"as local times, it is preferred to use aware datetimes to represent times in"
" UTC; as a result, using ``utcfromtimetuple`` may give misleading results. "
"If you have a naive ``datetime`` representing UTC, use "
"``datetime.replace(tzinfo=timezone.utc)`` to make it aware, at which point "
"you can use :meth:`.datetime.timetuple`."
msgstr ""

#: ../../library/datetime.rst:1352
msgid ""
"Return the proleptic Gregorian ordinal of the date. The same as "
"``self.date().toordinal()``."
msgstr "返回日期的预期格列高利历序号。 与 ``self.date().toordinal()`` 相同。"

#: ../../library/datetime.rst:1357
msgid ""
"Return POSIX timestamp corresponding to the :class:`.datetime` instance. The"
" return value is a :class:`float` similar to that returned by "
":func:`time.time`."
msgstr ""
"返回对应于 :class:`.datetime` 实例的 POSIX 时间戳。 此返回值是与 :func:`time.time` 返回值类似的 "
":class:`float` 对象。"

#: ../../library/datetime.rst:1361
msgid ""
"Naive :class:`.datetime` instances are assumed to represent local time and "
"this method relies on the platform C :c:func:`mktime` function to perform "
"the conversion. Since :class:`.datetime` supports wider range of values than"
" :c:func:`mktime` on many platforms, this method may raise "
":exc:`OverflowError` for times far in the past or far in the future."
msgstr ""
"简单型 :class:`.datetime` 实例会假定为代表本地时间，并且此方法依赖于平台的 C :c:func:`mktime` 函数来执行转换。 "
"由于在许多平台上 :class:`.datetime` 支持的范围比 :c:func:`mktime` 更广，对于极其遥远的过去或未来此方法可能引发 "
":exc:`OverflowError`。"

#: ../../library/datetime.rst:1368
msgid ""
"For aware :class:`.datetime` instances, the return value is computed as::"
msgstr "对于感知型 :class:`.datetime` 实例，返回值的计算方式为::"

#: ../../library/datetime.rst:1375
msgid ""
"The :meth:`timestamp` method uses the :attr:`.fold` attribute to "
"disambiguate the times during a repeated interval."
msgstr ":meth:`timestamp` 方法使用 :attr:`.fold` 属性来消除重复间隔中的时间歧义。"

#: ../../library/datetime.rst:1381
msgid ""
"There is no method to obtain the POSIX timestamp directly from a naive "
":class:`.datetime` instance representing UTC time. If your application uses "
"this convention and your system timezone is not set to UTC, you can obtain "
"the POSIX timestamp by supplying ``tzinfo=timezone.utc``::"
msgstr ""
"没有一个方法能直接从表示 UTC 时间的简单型 :class:`.datetime` 实例获取 POSIX 时间戳。 "
"如果你的应用程序使用此惯例并且你的系统时区不是设为 UTC，你可以通过提供 ``tzinfo=timezone.utc`` 来获取 POSIX "
"时间戳::"

#: ../../library/datetime.rst:1389
msgid "or by calculating the timestamp directly::"
msgstr "或者通过直接计算时间戳::"

#: ../../library/datetime.rst:1395
msgid ""
"Return the day of the week as an integer, where Monday is 0 and Sunday is 6."
" The same as ``self.date().weekday()``. See also :meth:`isoweekday`."
msgstr ""
"返回一个整数代表星期几，星期一为 0，星期天为 6。 相当于 ``self.date().weekday()``。 另请参阅 "
":meth:`isoweekday`。"

#: ../../library/datetime.rst:1401
msgid ""
"Return the day of the week as an integer, where Monday is 1 and Sunday is 7."
" The same as ``self.date().isoweekday()``. See also :meth:`weekday`, "
":meth:`isocalendar`."
msgstr ""
"返回一个整数代表星期几，星期一为 1，星期天为 7。 相当于 ``self.date().isoweekday()``。 另请参阅 "
":meth:`weekday`, :meth:`isocalendar`。"

#: ../../library/datetime.rst:1408
msgid ""
"Return a :term:`named tuple` with three components: ``year``, ``week`` and "
"``weekday``. The same as ``self.date().isocalendar()``."
msgstr ""
"返回一个由三部分组成的 :term:`named tuple`: ``year``, ``week`` 和 ``weekday``。 等同于 "
"``self.date().isocalendar()``。"

#: ../../library/datetime.rst:1414
msgid "Return a string representing the date and time in ISO 8601 format:"
msgstr "返回一个以 ISO 8601 格式表示的日期和时间字符串："

#: ../../library/datetime.rst:1416
msgid "``YYYY-MM-DDTHH:MM:SS.ffffff``, if :attr:`microsecond` is not 0"
msgstr "``YYYY-MM-DDTHH:MM:SS.ffffff``，如果 :attr:`microsecond` 不为 0"

#: ../../library/datetime.rst:1417
msgid "``YYYY-MM-DDTHH:MM:SS``, if :attr:`microsecond` is 0"
msgstr "``YYYY-MM-DDTHH:MM:SS``，如果 :attr:`microsecond` 为 0"

#: ../../library/datetime.rst:1419
msgid ""
"If :meth:`utcoffset` does not return ``None``, a string is appended, giving "
"the UTC offset:"
msgstr "如果 :meth:`utcoffset` 返回值不为 ``None``，则添加一个字符串来给出 UTC 时差："

#: ../../library/datetime.rst:1422
msgid ""
"``YYYY-MM-DDTHH:MM:SS.ffffff+HH:MM[:SS[.ffffff]]``, if :attr:`microsecond` "
"is not 0"
msgstr ""
"``YYYY-MM-DDTHH:MM:SS.ffffff+HH:MM[:SS[.ffffff]]``，如果 :attr:`microsecond` 不为"
" 0"

#: ../../library/datetime.rst:1424
msgid ""
"``YYYY-MM-DDTHH:MM:SS+HH:MM[:SS[.ffffff]]``,  if :attr:`microsecond` is 0"
msgstr ""
"``YYYY-MM-DDTHH:MM:SS+HH:MM[:SS[.ffffff]]``，如果 :attr:`microsecond` 为 0"

#: ../../library/datetime.rst:1434
msgid ""
"The optional argument *sep* (default ``'T'``) is a one-character separator, "
"placed between the date and time portions of the result. For example::"
msgstr "可选参数 *sep* (默认为 ``'T'``) 为单个分隔字符，会被放在结果的日期和时间两部分之间。 例如::"

#: ../../library/datetime.rst:1448 ../../library/datetime.rst:1809
msgid ""
"The optional argument *timespec* specifies the number of additional "
"components of the time to include (the default is ``'auto'``). It can be one"
" of the following:"
msgstr "可选参数 *timespec* 要包含的额外时间组件值 (默认为 ``'auto'``)。它可以是以下值之一："

#: ../../library/datetime.rst:1452 ../../library/datetime.rst:1813
msgid ""
"``'auto'``: Same as ``'seconds'`` if :attr:`microsecond` is 0, same as "
"``'microseconds'`` otherwise."
msgstr ""
"``'auto'``: 如果 :attr:`microsecond` 为 0 则与 ``'seconds'`` 相同，否则与 "
"``'microseconds'`` 相同。"

#: ../../library/datetime.rst:1454 ../../library/datetime.rst:1815
msgid "``'hours'``: Include the :attr:`hour` in the two-digit ``HH`` format."
msgstr "``'hours'``: 以两个数码的 ``HH`` 格式 包含 :attr:`hour`。"

#: ../../library/datetime.rst:1455 ../../library/datetime.rst:1816
msgid ""
"``'minutes'``: Include :attr:`hour` and :attr:`minute` in ``HH:MM`` format."
msgstr "``'minutes'``: 以 ``HH:MM`` 格式包含 :attr:`hour` 和 :attr:`minute`。"

#: ../../library/datetime.rst:1456 ../../library/datetime.rst:1817
msgid ""
"``'seconds'``: Include :attr:`hour`, :attr:`minute`, and :attr:`second` in "
"``HH:MM:SS`` format."
msgstr ""
"``'seconds'``: 以 ``HH:MM:SS`` 格式包含 :attr:`hour`, :attr:`minute` 和 "
":attr:`second`。"

#: ../../library/datetime.rst:1458 ../../library/datetime.rst:1819
msgid ""
"``'milliseconds'``: Include full time, but truncate fractional second part "
"to milliseconds. ``HH:MM:SS.sss`` format."
msgstr "``'milliseconds'``: 包含完整时间，但将秒值的小数部分截断至毫秒。 格式为 ``HH:MM:SS.sss``。"

#: ../../library/datetime.rst:1460 ../../library/datetime.rst:1821
msgid "``'microseconds'``: Include full time in ``HH:MM:SS.ffffff`` format."
msgstr "``'microseconds'``: 以 ``HH:MM:SS.ffffff`` 格式包含完整时间。"

#: ../../library/datetime.rst:1464 ../../library/datetime.rst:1825
msgid "Excluded time components are truncated, not rounded."
msgstr "排除掉的时间部分将被截断，而不是被舍入。"

#: ../../library/datetime.rst:1466
msgid ":exc:`ValueError` will be raised on an invalid *timespec* argument::"
msgstr "对于无效的 *timespec* 参数将引发 :exc:`ValueError`::"

#: ../../library/datetime.rst:1476 ../../library/datetime.rst:1840
msgid "Added the *timespec* argument."
msgstr "增加了 *timespec* 参数。"

#: ../../library/datetime.rst:1482
msgid ""
"For a :class:`.datetime` instance *d*, ``str(d)`` is equivalent to "
"``d.isoformat(' ')``."
msgstr "对于 :class:`.datetime` 实例 *d*，``str(d)`` 等价于 ``d.isoformat(' ')``。"

#: ../../library/datetime.rst:1488
msgid "Return a string representing the date and time::"
msgstr "返回一个表示日期和时间的字符串::"

#: ../../library/datetime.rst:1494
msgid ""
"The output string will *not* include time zone information, regardless of "
"whether the input is aware or naive."
msgstr "输出字符串将 *并不* 包括时区信息，无论输入的是感知型还是简单型。"

#: ../../library/datetime.rst:1501
msgid ""
"on platforms where the native C :c:func:`ctime` function (which "
":func:`time.ctime` invokes, but which :meth:`datetime.ctime` does not "
"invoke) conforms to the C standard."
msgstr ""
"在原生 C :c:func:`ctime` 函数遵循 C 标准的平台上 (:func:`time.ctime` 会发起对该函数的调用，但 "
":meth:`datetime.ctime` 并不会) 。"

#: ../../library/datetime.rst:1507
msgid ""
"Return a string representing the date and time, controlled by an explicit "
"format string. For a complete list of formatting directives, see "
":ref:`strftime-strptime-behavior`."
msgstr ""
"返回一个由显式格式字符串所指明的代表日期和时间的字符串，要获取格式指令的完整列表，请参阅 :ref:`strftime-strptime-"
"behavior`。"

#: ../../library/datetime.rst:1514
msgid ""
"Same as :meth:`.datetime.strftime`. This makes it possible to specify a "
"format string for a :class:`.datetime` object in :ref:`formatted string "
"literals <f-strings>` and when using :meth:`str.format`. For a complete list"
" of formatting directives, see :ref:`strftime-strptime-behavior`."
msgstr ""
"与 :meth:`.datetime.strftime` 相同。 此方法使得为 :class:`.datetime` 对象指定以 "
":ref:`格式化字符串字面值 <f-strings>` 表示的格式化字符串以及使用 :meth:`str.format` 进行格式化成为可能。 "
"要获取格式指令的完整列表，请参阅 :ref:`strftime-strptime-behavior`。"

#: ../../library/datetime.rst:1521
msgid "Examples of Usage: :class:`.datetime`"
msgstr "用法示例: :class:`.datetime`"

#: ../../library/datetime.rst:1523
msgid "Examples of working with :class:`~datetime.datetime` objects:"
msgstr "使用 :class:`~datetime.datetime` 对象的例子："

#: ../../library/datetime.rst:1576
msgid ""
"The example below defines a :class:`tzinfo` subclass capturing time zone "
"information for Kabul, Afghanistan, which used +4 UTC until 1945 and then "
"+4:30 UTC thereafter::"
msgstr ""
"以下示例定义了一个 :class:`tzinfo` 子类，它捕获 Kabul, Afghanistan 时区的信息，该时区使用 +4 UTC 直到 "
"1945 年，之后则使用 +4:30 UTC::"

#: ../../library/datetime.rst:1623
msgid "Usage of ``KabulTz`` from above::"
msgstr "上述 ``KabulTz`` 的用法::"

#: ../../library/datetime.rst:1649
msgid ":class:`.time` Objects"
msgstr ":class:`.time` 对象"

#: ../../library/datetime.rst:1651
msgid ""
"A :class:`time` object represents a (local) time of day, independent of any "
"particular day, and subject to adjustment via a :class:`tzinfo` object."
msgstr "一个 :class:`time` 对象代表某日的（本地）时间，它独立于任何特定日期，并可通过 :class:`tzinfo` 对象来调整。"

#: ../../library/datetime.rst:1656
msgid ""
"All arguments are optional. *tzinfo* may be ``None``, or an instance of a "
":class:`tzinfo` subclass. The remaining arguments must be integers in the "
"following ranges:"
msgstr ""
"所有参数都是可选的。 *tzinfo* 可以是 ``None``，或者是一个 :class:`tzinfo` 子类的实例。 "
"其余的参数必须是在下面范围内的整数："

#: ../../library/datetime.rst:1666
msgid ""
"If an argument outside those ranges is given, :exc:`ValueError` is raised. "
"All default to ``0`` except *tzinfo*, which defaults to :const:`None`."
msgstr ""
"如果给出一个此范围以外的参数，则会引发 :exc:`ValueError`。 所有参数值默认为 ``0``，只有 *tzinfo* 默认为 "
":const:`None`。"

#: ../../library/datetime.rst:1674
msgid "The earliest representable :class:`.time`, ``time(0, 0, 0, 0)``."
msgstr "早最的可表示 :class:`.time`, ``time(0, 0, 0, 0)``。"

#: ../../library/datetime.rst:1679
msgid "The latest representable :class:`.time`, ``time(23, 59, 59, 999999)``."
msgstr "最晚的可表示 :class:`.time`, ``time(23, 59, 59, 999999)``。"

#: ../../library/datetime.rst:1684
msgid ""
"The smallest possible difference between non-equal :class:`.time` objects, "
"``timedelta(microseconds=1)``, although note that arithmetic on "
":class:`.time` objects is not supported."
msgstr ""
"两个不相等的 :class:`.time` 对象之间可能的最小间隔，``timedelta(microseconds=1)``，但是请注意 "
":class:`.time` 对象并不支持算术运算。"

#: ../../library/datetime.rst:1713
msgid ""
"The object passed as the tzinfo argument to the :class:`.time` constructor, "
"or ``None`` if none was passed."
msgstr "作为 tzinfo 参数被传给 :class:`.time` 构造器的对象，如果没有传入值则为 ``None``。"

#: ../../library/datetime.rst:1727
msgid ""
":class:`.time` objects support comparison of :class:`.time` to "
":class:`.time`, where *a* is considered less than *b* when *a* precedes *b* "
"in time. If one comparand is naive and the other is aware, :exc:`TypeError` "
"is raised if an order comparison is attempted. For equality comparisons, "
"naive instances are never equal to aware instances."
msgstr ""
":class:`.time` 对象支持 :class:`.time` 与 :class:`.time` 的比较，当 *a* 时间在 *b* "
"之前时，则认为 *a* 小于 *b*。 如果比较的一方是简单型而另一方是感知型，则如果尝试进行顺序比较将引发 :exc:`TypeError`。 "
"对于相等比较，简单型实例将永远不等于感知型实例。"

#: ../../library/datetime.rst:1733
msgid ""
"If both comparands are aware, and have the same :attr:`~time.tzinfo` "
"attribute, the common :attr:`~time.tzinfo` attribute is ignored and the base"
" times are compared. If both comparands are aware and have different "
":attr:`~time.tzinfo` attributes, the comparands are first adjusted by "
"subtracting their UTC offsets (obtained from ``self.utcoffset()``). In order"
" to stop mixed-type comparisons from falling back to the default comparison "
"by object address, when a :class:`.time` object is compared to an object of "
"a different type, :exc:`TypeError` is raised unless the comparison is ``==``"
" or ``!=``. The latter cases return :const:`False` or :const:`True`, "
"respectively."
msgstr ""
"如果两个比较方都是感知型，且具有相同的 :attr:`~time.tzinfo` 属性，相同的 :attr:`~time.tzinfo` "
"属性会被忽略并对基本时间值进行比较。 如果两个比较方都是感知型且具有不同的 :attr:`~time.tzinfo` "
"属性，两个比较方将首先通过减去它们的 UTC 时差（从 ``self.utcoffset()`` 获取）来进行调整。 "
"为了防止将混合类型比较回退为基于对象地址的默认比较，当 :class:`.time` 对象与不同类型的对象比较时，将会引发 "
":exc:`TypeError`，除非比较运算符是 ``==`` 或 ``!=``。 在后两种情况下将分别返回 :const:`False` 或 "
":const:`True`。"

#: ../../library/datetime.rst:1743
msgid ""
"Equality comparisons between aware and naive :class:`~datetime.time` "
"instances don't raise :exc:`TypeError`."
msgstr "感知型和简单型 :class:`~datetime.time` 实例之间的相等比较不会引发 :exc:`TypeError`。"

#: ../../library/datetime.rst:1747
msgid ""
"In Boolean contexts, a :class:`.time` object is always considered to be "
"true."
msgstr "在布尔运算时，:class:`.time` 对象总是被视为真值。"

#: ../../library/datetime.rst:1749
msgid ""
"Before Python 3.5, a :class:`.time` object was considered to be false if it "
"represented midnight in UTC. This behavior was considered obscure and error-"
"prone and has been removed in Python 3.5. See :issue:`13936` for full "
"details."
msgstr ""
"在 Python 3.5 之前，如果一个 :class:`.time` 对象代表 UTC 午夜零时则会被视为假值。 "
"此行为被认为容易引发困惑和错误，因此从 Python 3.5 起已被去除。 详情参见 :issue:`13936`。"

#: ../../library/datetime.rst:1756
msgid "Other constructor:"
msgstr "其他构造方法："

#: ../../library/datetime.rst:1760
msgid ""
"Return a :class:`.time` corresponding to a *time_string* in one of the "
"formats emitted by :meth:`time.isoformat`. Specifically, this function "
"supports strings in the format:"
msgstr ""
"返回对应于 :meth:`time.isoformat` 所提供的某种 *time_string* 格式的 :class:`.time`。 "
"特别地，此函数支持以下格式的字符串："

#: ../../library/datetime.rst:1770
msgid ""
"This does *not* support parsing arbitrary ISO 8601 strings. It is only "
"intended as the inverse operation of :meth:`time.isoformat`."
msgstr "此方法 *并不* 支持解析任意 ISO 8601 字符串。 它的目的只是作为 :meth:`time.isoformat` 的逆操作。"

#: ../../library/datetime.rst:1791
msgid ""
"Return a :class:`.time` with the same value, except for those attributes "
"given new values by whichever keyword arguments are specified. Note that "
"``tzinfo=None`` can be specified to create a naive :class:`.time` from an "
"aware :class:`.time`, without conversion of the time data."
msgstr ""
"返回一个具有同样属性值的 :class:`.time`，除非通过任何关键字参数指定了某些属性值。 请注意可以通过指定 ``tzinfo=None`` "
"从一个感知型 :class:`.time` 创建一个简单型 :class:`.time`，而不必转换时间数据。"

#: ../../library/datetime.rst:1802
msgid "Return a string representing the time in ISO 8601 format, one of:"
msgstr "返回表示为下列 ISO 8601 格式之一的时间字符串："

#: ../../library/datetime.rst:1804
msgid "``HH:MM:SS.ffffff``, if :attr:`microsecond` is not 0"
msgstr "``HH:MM:SS.ffffff``，如果 :attr:`microsecond` 不为 0"

#: ../../library/datetime.rst:1805
msgid "``HH:MM:SS``, if :attr:`microsecond` is 0"
msgstr "``HH:MM:SS``，如果 :attr:`microsecond` 为 0"

#: ../../library/datetime.rst:1806
msgid ""
"``HH:MM:SS.ffffff+HH:MM[:SS[.ffffff]]``, if :meth:`utcoffset` does not "
"return ``None``"
msgstr ""
"``HH:MM:SS.ffffff+HH:MM[:SS[.ffffff]]``，如果 :meth:`utcoffset` 不返回 ``None``"

#: ../../library/datetime.rst:1807
msgid ""
"``HH:MM:SS+HH:MM[:SS[.ffffff]]``, if :attr:`microsecond` is 0 and "
":meth:`utcoffset` does not return ``None``"
msgstr ""
"``HH:MM:SS+HH:MM[:SS[.ffffff]]``，如果 :attr:`microsecond` 为 0 并且 "
":meth:`utcoffset` 不返回 ``None``"

#: ../../library/datetime.rst:1827
msgid ":exc:`ValueError` will be raised on an invalid *timespec* argument."
msgstr "对于无效的 *timespec* 参数将引发 :exc:`ValueError`。"

#: ../../library/datetime.rst:1846
msgid "For a time *t*, ``str(t)`` is equivalent to ``t.isoformat()``."
msgstr "对于时间对象 *t*, ``str(t)`` 等价于 ``t.isoformat()``。"

#: ../../library/datetime.rst:1851
msgid ""
"Return a string representing the time, controlled by an explicit format "
"string. For a complete list of formatting directives, see :ref:`strftime-"
"strptime-behavior`."
msgstr ""
"返回一个由显式格式字符串所指明的代表时间的字符串。 要获取格式指令的完整列表，请参阅 :ref:`strftime-strptime-"
"behavior`。"

#: ../../library/datetime.rst:1858
msgid ""
"Same as :meth:`.time.strftime`. This makes it possible to specify a format "
"string for a :class:`.time` object in :ref:`formatted string literals "
"<f-strings>` and when using :meth:`str.format`. For a complete list of "
"formatting directives, see :ref:`strftime-strptime-behavior`."
msgstr ""
"与 :meth:`.time.strftime` 相同。 此方法使得为 :class:`.time` 对象指定以 :ref:`格式化字符串字面值 "
"<f-strings>` 表示的格式化字符串以及使用 :meth:`str.format` 进行格式化成为可能。 要获取格式指令的完整列表，请参阅 "
":ref:`strftime-strptime-behavior`。"

#: ../../library/datetime.rst:1867
msgid ""
"If :attr:`.tzinfo` is ``None``, returns ``None``, else returns "
"``self.tzinfo.utcoffset(None)``, and raises an exception if the latter "
"doesn't return ``None`` or a :class:`timedelta` object with magnitude less "
"than one day."
msgstr ""
"如果 :attr:`.tzinfo` 为 ``None``，则返回 ``None``，否则返回 "
"``self.tzinfo.utcoffset(None)``，并且在后者不返回 ``None`` 或一个幅度小于一天的 a "
":class:`timedelta` 对象时将引发异常。"

#: ../../library/datetime.rst:1877
msgid ""
"If :attr:`.tzinfo` is ``None``, returns ``None``, else returns "
"``self.tzinfo.dst(None)``, and raises an exception if the latter doesn't "
"return ``None``, or a :class:`timedelta` object with magnitude less than one"
" day."
msgstr ""
"如果 :attr:`.tzinfo` 为 ``None``，则返回 ``None``，否则返回 "
"``self.tzinfo.dst(None)``，并且在后者不返回 ``None`` 或者一个幅度小于一天的 :class:`timedelta` "
"对象时将引发异常。"

#: ../../library/datetime.rst:1886
msgid ""
"If :attr:`.tzinfo` is ``None``, returns ``None``, else returns "
"``self.tzinfo.tzname(None)``, or raises an exception if the latter doesn't "
"return ``None`` or a string object."
msgstr ""
"如果 :attr:`.tzinfo` 为 ``None``，则返回 ``None``，否则返回 "
"``self.tzinfo.tzname(None)``，如果后者不返回 ``None`` 或者一个字符串对象则将引发异常。"

#: ../../library/datetime.rst:1891
msgid "Examples of Usage: :class:`.time`"
msgstr "用法示例: :class:`.time`"

#: ../../library/datetime.rst:1893
msgid "Examples of working with a :class:`.time` object::"
msgstr "使用 :class:`.time` 对象的例子::"

#: ../../library/datetime.rst:1924
msgid ":class:`tzinfo` Objects"
msgstr ":class:`tzinfo` 对象"

#: ../../library/datetime.rst:1928
msgid ""
"This is an abstract base class, meaning that this class should not be "
"instantiated directly.  Define a subclass of :class:`tzinfo` to capture "
"information about a particular time zone."
msgstr "这是一个抽象基类，也就是说该类不应被直接实例化。 请定义 :class:`tzinfo` 的子类来捕获有关特定时区的信息。"

#: ../../library/datetime.rst:1932
msgid ""
"An instance of (a concrete subclass of) :class:`tzinfo` can be passed to the"
" constructors for :class:`.datetime` and :class:`.time` objects. The latter "
"objects view their attributes as being in local time, and the "
":class:`tzinfo` object supports methods revealing offset of local time from "
"UTC, the name of the time zone, and DST offset, all relative to a date or "
"time object passed to them."
msgstr ""
":class:`tzinfo` 的（某个实体子类）的实例可以被传给 :class:`.datetime` 和 :class:`.time` "
"对象的构造器。 这些对象会将它们的属性视为对应于本地时间，并且 :class:`tzinfo` 对象支持展示本地时间与 UTC 的差值、时区名称以及 "
"DST 差值的方法，都是与传给它们的日期或时间对象的相对值。"

#: ../../library/datetime.rst:1938
msgid ""
"You need to derive a concrete subclass, and (at least) supply "
"implementations of the standard :class:`tzinfo` methods needed by the "
":class:`.datetime` methods you use. The :mod:`datetime` module provides "
":class:`timezone`, a simple concrete subclass of :class:`tzinfo` which can "
"represent timezones with fixed offset from UTC such as UTC itself or North "
"American EST and EDT."
msgstr ""
"你需要派生一个实体子类，并且（至少）提供你使用 :class:`.datetime` 方法所需要的标准 :class:`tzinfo` 方法的实现。 "
":mod:`datetime` 模块提供了 :class:`timezone`，这是 :class:`tzinfo` 的一个简单实体子类，它能以与 "
"UTC 的固定差值来表示不同的时区，例如 UTC 本身或北美的 EST 和 EDT。"

#: ../../library/datetime.rst:1945
msgid ""
"Special requirement for pickling:  A :class:`tzinfo` subclass must have an "
":meth:`__init__` method that can be called with no arguments, otherwise it "
"can be pickled but possibly not unpickled again. This is a technical "
"requirement that may be relaxed in the future."
msgstr ""
"对于封存操作的特殊要求：一个 :class:`tzinfo` 子类必须具有可不带参数调用的 :meth:`__init__` "
"方法，否则它虽然可以被封存，但可能无法再次解封。 这是个技术性要求，在未来可能会被取消。"

#: ../../library/datetime.rst:1950
msgid ""
"A concrete subclass of :class:`tzinfo` may need to implement the following "
"methods. Exactly which methods are needed depends on the uses made of aware "
":mod:`datetime` objects. If in doubt, simply implement all of them."
msgstr ""
"一个 :class:`tzinfo` 的实体子类可能需要实现以下方法。 具体需要实现的方法取决于感知型 :mod:`datetime` 对象如何使用它。"
" 如果有疑问，可以简单地全都实现。"

#: ../../library/datetime.rst:1957
msgid ""
"Return offset of local time from UTC, as a :class:`timedelta` object that is"
" positive east of UTC. If local time is west of UTC, this should be "
"negative."
msgstr ""
"将本地时间与 UTC 时差返回为一个 :class:`timedelta` 对象，如果本地时区在 UTC 以东则为正值。 如果本地时区在 UTC "
"以西则为负值。"

#: ../../library/datetime.rst:1960
msgid ""
"This represents the *total* offset from UTC; for example, if a "
":class:`tzinfo` object represents both time zone and DST adjustments, "
":meth:`utcoffset` should return their sum. If the UTC offset isn't known, "
"return ``None``. Else the value returned must be a :class:`timedelta` object"
" strictly between ``-timedelta(hours=24)`` and ``timedelta(hours=24)`` (the "
"magnitude of the offset must be less than one day). Most implementations of "
":meth:`utcoffset` will probably look like one of these two::"
msgstr ""
"这表示与 UTC 的 *总计* 时差；举例来说，如果一个 :class:`tzinfo` 对象同时代表时区和 DST 调整，则 "
":meth:`utcoffset` 应当返回两者的和。 如果 UTC 时差不确定则返回 ``None``。 在其他情况下返回值必须为一个 "
":class:`timedelta` 对象，其取值严格限制于 ``-timedelta(hours=24)`` 和 "
"``timedelta(hours=24)`` 之间（差值的幅度必须小于一天）。 大多数 :meth:`utcoffset` "
"的实现看起来可能像是以下两者之一::"

#: ../../library/datetime.rst:1971
msgid ""
"If :meth:`utcoffset` does not return ``None``, :meth:`dst` should not return"
" ``None`` either."
msgstr "如果 :meth:`utcoffset` 返回值不为 ``None``，则 :meth:`dst` 也不应返回 ``None``。"

#: ../../library/datetime.rst:1974
msgid ""
"The default implementation of :meth:`utcoffset` raises "
":exc:`NotImplementedError`."
msgstr "默认的 :meth:`utcoffset` 实现会引发 :exc:`NotImplementedError`。"

#: ../../library/datetime.rst:1983
msgid ""
"Return the daylight saving time (DST) adjustment, as a :class:`timedelta` "
"object or ``None`` if DST information isn't known."
msgstr "将夏令时（DST）调整返回为一个 :class:`timedelta` 对象，如果 DST 信息未知则返回 ``None``。"

#: ../../library/datetime.rst:1987
msgid ""
"Return ``timedelta(0)`` if DST is not in effect. If DST is in effect, return"
" the offset as a :class:`timedelta` object (see :meth:`utcoffset` for "
"details). Note that DST offset, if applicable, has already been added to the"
" UTC offset returned by :meth:`utcoffset`, so there's no need to consult "
":meth:`dst` unless you're interested in obtaining DST info separately. For "
"example, :meth:`datetime.timetuple` calls its :attr:`~.datetime.tzinfo` "
"attribute's :meth:`dst` method to determine how the :attr:`tm_isdst` flag "
"should be set, and :meth:`tzinfo.fromutc` calls :meth:`dst` to account for "
"DST changes when crossing time zones."
msgstr ""
"如果 DST 未启用则返回 ``timedelta(0)``。 如果 DST 已启用则将差值作为一个 :class:`timedelta` "
"对象返回（参见 :meth:`utcoffset` 了解详情）。 请注意 DST 差值如果可用，就会直接被加入 :meth:`utcoffset` "
"所返回的 UTC 时差，因此无需额外查询 :meth:`dst` 除非你希望单独获取 DST 信息。 "
"例如，:meth:`datetime.timetuple` 会调用其 :attr:`~.datetime.tzinfo` 属性的 :meth:`dst`"
" 方法来确定应该如何设置 :attr:`tm_isdst` 旗标，而 :meth:`tzinfo.fromutc` 会调用 :meth:`dst` "
"来在跨越时区时处理 DST 的改变。"

#: ../../library/datetime.rst:1997
msgid ""
"An instance *tz* of a :class:`tzinfo` subclass that models both standard and"
" daylight times must be consistent in this sense:"
msgstr "一个可以同时处理标准时和夏令时的 :class:`tzinfo` 子类的实例 *tz* 必须在此情形中保持一致："

#: ../../library/datetime.rst:2000
msgid "``tz.utcoffset(dt) - tz.dst(dt)``"
msgstr "``tz.utcoffset(dt) - tz.dst(dt)``"

#: ../../library/datetime.rst:2002
msgid ""
"must return the same result for every :class:`.datetime` *dt* with "
"``dt.tzinfo == tz``  For sane :class:`tzinfo` subclasses, this expression "
"yields the time zone's \"standard offset\", which should not depend on the "
"date or the time, but only on geographic location. The implementation of "
":meth:`datetime.astimezone` relies on this, but cannot detect violations; "
"it's the programmer's responsibility to ensure it. If a :class:`tzinfo` "
"subclass cannot guarantee this, it may be able to override the default "
"implementation of :meth:`tzinfo.fromutc` to work correctly with "
":meth:`astimezone` regardless."
msgstr ""
"必须为具有同样的 :class:`tzinfo` 子类实例且 ``dt.tzinfo == tz`` 的每个 :class:`.datetime` 对象"
" *dt* 返回同样的结果，此表达式会产生时区的“标准时差”，它不应取决于具体日期或时间，只取决于地理位置。 "
":meth:`datetime.astimezone` 的实现依赖此方法，但无法检测违反规则的情况；确保符合规则是程序员的责任。 如果一个 "
":class:`tzinfo` 子类不能保证这一点，也许可以重写 :meth:`tzinfo.fromutc` 的默认实现以便在任何情况下与 "
":meth:`astimezone` 正确配合。"

#: ../../library/datetime.rst:2011
msgid ""
"Most implementations of :meth:`dst` will probably look like one of these "
"two::"
msgstr "大多数 :meth:`dst` 的实现可能会如以下两者之一::"

#: ../../library/datetime.rst:2017
msgid "or::"
msgstr "或者："

#: ../../library/datetime.rst:2029
msgid ""
"The default implementation of :meth:`dst` raises :exc:`NotImplementedError`."
msgstr "默认的 :meth:`dst` 实现会引发 :exc:`NotImplementedError`。"

#: ../../library/datetime.rst:2037
msgid ""
"Return the time zone name corresponding to the :class:`.datetime` object "
"*dt*, as a string. Nothing about string names is defined by the "
":mod:`datetime` module, and there's no requirement that it mean anything in "
"particular. For example, \"GMT\", \"UTC\", \"-500\", \"-5:00\", \"EDT\", "
"\"US/Eastern\", \"America/New York\" are all valid replies. Return ``None`` "
"if a string name isn't known. Note that this is a method rather than a fixed"
" string primarily because some :class:`tzinfo` subclasses will wish to "
"return different names depending on the specific value of *dt* passed, "
"especially if the :class:`tzinfo` class is accounting for daylight time."
msgstr ""
"将对应于 :class:`.datetime` 对象 *dt* 的时区名称作为字符串返回。 :mod:`datetime` "
"模块没有定义任何字符串名称相关内容，也不要求名称有任何特定含义。 例如 \"GMT\", \"UTC\", \"-500\", \"-5:00\", "
"\"EDT\", \"US/Eastern\", \"America/New York\" 都是有效的返回值。 如果字符串名称未知则返回 "
"``None``。 请注意这是一个方法而不是一个固定的字符串，这主要是因为某些 :class:`tzinfo` 子类可能需要根据所传入的特定 *dt* "
"值返回不同的名称，特别是当 :class:`tzinfo` 类要负责处理夏令时的时候。"

#: ../../library/datetime.rst:2047
msgid ""
"The default implementation of :meth:`tzname` raises "
":exc:`NotImplementedError`."
msgstr "默认的 :meth:`tzname` 实现会引发 :exc:`NotImplementedError`。"

#: ../../library/datetime.rst:2050
msgid ""
"These methods are called by a :class:`.datetime` or :class:`.time` object, "
"in response to their methods of the same names. A :class:`.datetime` object "
"passes itself as the argument, and a :class:`.time` object passes ``None`` "
"as the argument. A :class:`tzinfo` subclass's methods should therefore be "
"prepared to accept a *dt* argument of ``None``, or of class "
":class:`.datetime`."
msgstr ""
"这些方法会被 :class:`.datetime` 或 :class:`.time` 对象调用，用来与它们的同名方法相对应。 "
":class:`.datetime` 对象会将自身作为传入参数，而 :class:`.time` 对象会将 ``None`` 作为传入参数。 这样 "
":class:`tzinfo` 子类的方法应当准备好接受 *dt* 参数值为 ``None`` 或是 :class:`.datetime` 类的实例。"

#: ../../library/datetime.rst:2056
msgid ""
"When ``None`` is passed, it's up to the class designer to decide the best "
"response. For example, returning ``None`` is appropriate if the class wishes"
" to say that time objects don't participate in the :class:`tzinfo` "
"protocols. It may be more useful for ``utcoffset(None)`` to return the "
"standard UTC offset, as there is no other convention for discovering the "
"standard offset."
msgstr ""
"当传入 ``None`` 时，应当由类的设计者来决定最佳回应方式。 例如，返回 ``None`` 适用于希望该类提示时间对象不参与 "
":class:`tzinfo` 协议处理。 让 ``utcoffset(None)`` 返回标准 UTC "
"时差也许会更有用处，因为并没有其他可用于发现标准时差的约定惯例。"

#: ../../library/datetime.rst:2062
msgid ""
"When a :class:`.datetime` object is passed in response to a "
":class:`.datetime` method, ``dt.tzinfo`` is the same object as *self*. "
":class:`tzinfo` methods can rely on this, unless user code calls "
":class:`tzinfo` methods directly. The intent is that the :class:`tzinfo` "
"methods interpret *dt* as being in local time, and not need worry about "
"objects in other timezones."
msgstr ""
"当传入一个 :class:`.datetime` 对象来回应 :class:`.datetime` 方法时，``dt.tzinfo`` 与 *self*"
" 是同一对象。 :class:`tzinfo` 方法可以依赖这一点，除非用户代码直接调用了 :class:`tzinfo` 方法。 此行为的目的是使得 "
":class:`tzinfo` 方法将 *dt* 解读为本地时间，而不需要担心其他时区的相关对象。"

#: ../../library/datetime.rst:2068
msgid ""
"There is one more :class:`tzinfo` method that a subclass may wish to "
"override:"
msgstr "还有一个额外的 :class:`tzinfo` 方法，某个子类可能会希望重写它："

#: ../../library/datetime.rst:2073
msgid ""
"This is called from the default :class:`datetime.astimezone()` "
"implementation. When called from that, ``dt.tzinfo`` is *self*, and *dt*'s "
"date and time data are to be viewed as expressing a UTC time. The purpose of"
" :meth:`fromutc` is to adjust the date and time data, returning an "
"equivalent datetime in *self*'s local time."
msgstr ""
"此方法会由默认的 :class:`datetime.astimezone()` 实现来调用。 当被其调用时，``dt.tzinfo`` 为 "
"*self*，并且 *dt* 的日期和时间数据会被视为表示 UTC 时间，:meth:`fromutc` 的目标是调整日期和时间数据，返回一个等价的 "
"datetime 来表示 *self* 的本地时间。"

#: ../../library/datetime.rst:2079
msgid ""
"Most :class:`tzinfo` subclasses should be able to inherit the default "
":meth:`fromutc` implementation without problems. It's strong enough to "
"handle fixed-offset time zones, and time zones accounting for both standard "
"and daylight time, and the latter even if the DST transition times differ in"
" different years. An example of a time zone the default :meth:`fromutc` "
"implementation may not handle correctly in all cases is one where the "
"standard offset (from UTC) depends on the specific date and time passed, "
"which can happen for political reasons. The default implementations of "
":meth:`astimezone` and :meth:`fromutc` may not produce the result you want "
"if the result is one of the hours straddling the moment the standard offset "
"changes."
msgstr ""
"大多数 :class:`tzinfo` 子类应该能够毫无问题地继承默认的 :meth:`fromutc` 实现。 "
"它的健壮性足以处理固定差值的时区以及同时负责标准时和夏令时的时区，对于后者甚至还能处理 DST 转换时间在各个年份有变化的情况。 一个默认 "
":meth:`fromutc` 实现可能无法在所有情况下正确处理的例子是（与 UTC "
"的）标准时差取决于所经过的特定日期和时间，这种情况可能由于政治原因而出现。 默认的 :meth:`astimezone` 和 "
":meth:`fromutc` 实现可能无法生成你希望的结果，如果这个结果恰好是跨越了标准时差发生改变的时刻当中的某个小时值的话。"

#: ../../library/datetime.rst:2090
msgid ""
"Skipping code for error cases, the default :meth:`fromutc` implementation "
"acts like::"
msgstr "忽略针对错误情况的代码，默认 :meth:`fromutc` 实现的行为方式如下::"

#: ../../library/datetime.rst:2108
msgid ""
"In the following :download:`tzinfo_examples.py "
"<../includes/tzinfo_examples.py>` file there are some examples of "
":class:`tzinfo` classes:"
msgstr ""
"在以下 :download:`tzinfo_examples.py <../includes/tzinfo_examples.py>` 文件中有一些 "
":class:`tzinfo` 类的例子："

#: ../../library/datetime.rst:2114
msgid ""
"Note that there are unavoidable subtleties twice per year in a "
":class:`tzinfo` subclass accounting for both standard and daylight time, at "
"the DST transition points. For concreteness, consider US Eastern (UTC "
"-0500), where EDT begins the minute after 1:59 (EST) on the second Sunday in"
" March, and ends the minute after 1:59 (EDT) on the first Sunday in "
"November::"
msgstr ""
"请注意同时负责标准时和夏令时的 :class:`tzinfo` 子类在每年两次的 DST 转换点上会出现不可避免的微妙问题。具体而言，考虑美国东部时区 "
"(UTC -0500)，它的 EDT 从三月的第二个星期天 1:59 (EST) 之后一分钟开始，并在十一月的第一天星期天 1:59 (EDT) "
"之后一分钟结束::"

#: ../../library/datetime.rst:2128
msgid ""
"When DST starts (the \"start\" line), the local wall clock leaps from 1:59 "
"to 3:00. A wall time of the form 2:MM doesn't really make sense on that day,"
" so ``astimezone(Eastern)`` won't deliver a result with ``hour == 2`` on the"
" day DST begins. For example, at the Spring forward transition of 2016, we "
"get::"
msgstr ""
"当 DST 开始时（即 \"start\" 行），本地时钟从 1:59 跳到 3:00。 形式为 2:MM 的时间值在那一天是没有意义的，因此在 DST"
" 开始那一天 ``astimezone(Eastern)`` 不会输出包含 ``hour == 2`` 的结果。 例如，在 2016 "
"年春季时钟向前调整时，我们得到::"

#: ../../library/datetime.rst:2147
msgid ""
"When DST ends (the \"end\" line), there's a potentially worse problem: "
"there's an hour that can't be spelled unambiguously in local wall time: the "
"last hour of daylight time. In Eastern, that's times of the form 5:MM UTC on"
" the day daylight time ends. The local wall clock leaps from 1:59 (daylight "
"time) back to 1:00 (standard time) again. Local times of the form 1:MM are "
"ambiguous. :meth:`astimezone` mimics the local clock's behavior by mapping "
"two adjacent UTC hours into the same local hour then. In the Eastern "
"example, UTC times of the form 5:MM and 6:MM both map to 1:MM when converted"
" to Eastern, but earlier times have the :attr:`~datetime.fold` attribute set"
" to 0 and the later times have it set to 1. For example, at the Fall back "
"transition of 2016, we get::"
msgstr ""
"当 DST 结束时（见 \"end\" 行），会有更糟糕的潜在问题：本地时间值中有一个小时是不可能没有歧义的：夏令时的最后一小时。 "
"即以北美东部时间表示当天夏令时结束时的形式为 5:MM UTC 的时间。 本地时钟从 1:59 (夏令时) 再次跳回到 1:00 (标准时)。 形式为 "
"1:MM 的本地时间就是有歧义的。 此时 :meth:`astimezone` 是通过将两个相邻的 UTC "
"小时映射到两个相同的本地小时来模仿本地时钟的行为。 在这个北美东部时间的示例中，形式为 5:MM 和 6:MM 的 UTC "
"时间在转换为北美东部时间时都将被映射到 1:MM，但前一个时间会将 :attr:`~datetime.fold` 属性设为 0 而后一个时间会将其设为 "
"1。 例如，在 2016 年秋季时钟往回调整时，我们得到::"

#: ../../library/datetime.rst:2169
msgid ""
"Note that the :class:`.datetime` instances that differ only by the value of "
"the :attr:`~datetime.fold` attribute are considered equal in comparisons."
msgstr ""
"请注意不同的 :class:`.datetime` 实例仅通过 :attr:`~datetime.fold` "
"属性值来加以区分，它们在比较时会被视为相等。"

#: ../../library/datetime.rst:2172
msgid ""
"Applications that can't bear wall-time ambiguities should explicitly check "
"the value of the :attr:`~datetime.fold` attribute or avoid using hybrid "
":class:`tzinfo` subclasses; there are no ambiguities when using "
":class:`timezone`, or any other fixed-offset :class:`tzinfo` subclass (such "
"as a class representing only EST (fixed offset -5 hours), or only EDT (fixed"
" offset -4 hours))."
msgstr ""
"不允许时间显示存在歧义的应用需要显式地检查 :attr:`~datetime.fold` 属性的值，或者避免使用混合式的 :class:`tzinfo`"
" 子类；当使用 :class:`timezone` 或者任何其他固定差值的 :class:`tzinfo` 子类例如仅表示 EST（固定差值 -5 "
"小时）或仅表示 EDT（固定差值 -4 小时）的类时是不会有歧义的。"

#: ../../library/datetime.rst:2186
msgid ":mod:`zoneinfo`"
msgstr ":mod:`zoneinfo`"

#: ../../library/datetime.rst:2181
msgid ""
"The :mod:`datetime` module has a basic :class:`timezone` class (for handling"
" arbitrary fixed offsets from UTC) and its :attr:`timezone.utc` attribute (a"
" UTC timezone instance)."
msgstr ""
":mod:`datetime` 模块有一个基本 :class:`timezone` 类（用来处理任意与 UTC 的固定时差）及其 "
":attr:`timezone.utc` 属性（一个 UTC 时区实例）。"

#: ../../library/datetime.rst:2185
msgid ""
"``zoneinfo`` brings the *IANA timezone database* (also known as the Olson "
"database) to Python, and its usage is recommended."
msgstr "``zoneinfo`` 为 Python 带来了 *IANA时区数据库* （也被称为 Olson 数据库），推荐使用它。"

#: ../../library/datetime.rst:2192
msgid "`IANA timezone database <https://www.iana.org/time-zones>`_"
msgstr "`IANA 时区数据库 <https://www.iana.org/time-zones>`_"

#: ../../library/datetime.rst:2189
msgid ""
"The Time Zone Database (often called tz, tzdata or zoneinfo) contains code "
"and data that represent the history of local time for many representative "
"locations around the globe. It is updated periodically to reflect changes "
"made by political bodies to time zone boundaries, UTC offsets, and daylight-"
"saving rules."
msgstr ""
"该时区数据库 (通常称为 tz, tzdata 或 zoneinfo) 包含大量代码和数据用来表示全球许多有代表性的地点的本地时间的历史信息。 "
"它会定期进行更新以反映各政治实体对时区边界、UTC 差值和夏令时规则的更改。"

#: ../../library/datetime.rst:2199
msgid ":class:`timezone` Objects"
msgstr ":class:`timezone` 对象"

#: ../../library/datetime.rst:2201
msgid ""
"The :class:`timezone` class is a subclass of :class:`tzinfo`, each instance "
"of which represents a timezone defined by a fixed offset from UTC."
msgstr ""
":class:`timezone` 类是 :class:`tzinfo` 的子类，它的每个实例都代表一个以与 UTC 的固定时差来定义的时区。"

#: ../../library/datetime.rst:2205
msgid ""
"Objects of this class cannot be used to represent timezone information in "
"the locations where different offsets are used in different days of the year"
" or where historical changes have been made to civil time."
msgstr "此类的对象不可被用于代表某些特殊地点的时区信息，这些地点在一年的不同日期会使用不同的时差，或是在历史上对民用时间进行过调整。"

#: ../../library/datetime.rst:2212
msgid ""
"The *offset* argument must be specified as a :class:`timedelta` object "
"representing the difference between the local time and UTC. It must be "
"strictly between ``-timedelta(hours=24)`` and ``timedelta(hours=24)``, "
"otherwise :exc:`ValueError` is raised."
msgstr ""
"*offset* 参数必须指定为一个 :class:`timedelta` 对象，表示本地时间与 UTC 的时差。 它必须严格限制于 "
"``-timedelta(hours=24)`` 和 ``timedelta(hours=24)`` 之间，否则会引发 "
":exc:`ValueError`。"

#: ../../library/datetime.rst:2217
msgid ""
"The *name* argument is optional. If specified it must be a string that will "
"be used as the value returned by the :meth:`datetime.tzname` method."
msgstr "*name* 参数是可选的。 如果指定则必须为一个字符串，它将被用作 :meth:`datetime.tzname` 方法的返回值。"

#: ../../library/datetime.rst:2228 ../../library/datetime.rst:2239
msgid ""
"Return the fixed value specified when the :class:`timezone` instance is "
"constructed."
msgstr "返回当 :class:`timezone` 实例被构造时指定的固定值。"

#: ../../library/datetime.rst:2231
msgid ""
"The *dt* argument is ignored. The return value is a :class:`timedelta` "
"instance equal to the difference between the local time and UTC."
msgstr "*dt* 参数会被忽略。 返回值是一个 :class:`timedelta` 实例，其值等于本地时间与 UTC 之间的时差。"

#: ../../library/datetime.rst:2242
msgid ""
"If *name* is not provided in the constructor, the name returned by "
"``tzname(dt)`` is generated from the value of the ``offset`` as follows. If "
"*offset* is ``timedelta(0)``, the name is \"UTC\", otherwise it is a string "
"in the format ``UTC±HH:MM``, where ± is the sign of ``offset``, HH and MM "
"are two digits of ``offset.hours`` and ``offset.minutes`` respectively."
msgstr ""
"如果没有在构造器中提供 *name*，则 ``tzname(dt)`` 所返回的名称将根据 ``offset`` 值按以下规则生成。 如果 "
"*offset* 为 ``timedelta(0)``，则名称为“UTC”，否则为字符串 ``UTC±HH:MM``，其中 ± 为 ``offset``"
" 的正负符号，HH 和 MM 分别为表示 ``offset.hours`` 和 ``offset.minutes`` 的两个数码。"

#: ../../library/datetime.rst:2248
msgid ""
"Name generated from ``offset=timedelta(0)`` is now plain `'UTC'`, not "
"``'UTC+00:00'``."
msgstr ""

#: ../../library/datetime.rst:2255
msgid "Always returns ``None``."
msgstr "总是返回 ``None``。"

#: ../../library/datetime.rst:2259
msgid ""
"Return ``dt + offset``. The *dt* argument must be an aware "
":class:`.datetime` instance, with ``tzinfo`` set to ``self``."
msgstr ""
"返回 ``dt + offset``。 *dt* 参数必须为一个感知型 :class:`.datetime` 实例，其中 ``tzinfo`` 值设为 "
"``self``。"

#: ../../library/datetime.rst:2266
msgid "The UTC timezone, ``timezone(timedelta(0))``."
msgstr "UTC 时区，``timezone(timedelta(0))``。"

#: ../../library/datetime.rst:2275
msgid ":meth:`strftime` and :meth:`strptime` Behavior"
msgstr ":meth:`strftime` 和 :meth:`strptime` 的行为"

#: ../../library/datetime.rst:2277
msgid ""
":class:`date`, :class:`.datetime`, and :class:`.time` objects all support a "
"``strftime(format)`` method, to create a string representing the time under "
"the control of an explicit format string."
msgstr ""
":class:`date`, :class:`.datetime` 和 :class:`.time` 对象都支持 "
"``strftime(format)`` 方法，可用来创建由一个显式格式字符串所控制的表示时间的字符串。"

#: ../../library/datetime.rst:2281
msgid ""
"Conversely, the :meth:`datetime.strptime` class method creates a "
":class:`.datetime` object from a string representing a date and time and a "
"corresponding format string."
msgstr ""
"相反地，:meth:`datetime.strptime` 类会根据表示日期和时间的字符串和相应的格式字符串来创建一个 "
":class:`.datetime` 对象。"

#: ../../library/datetime.rst:2285
msgid ""
"The table below provides a high-level comparison of :meth:`strftime` versus "
":meth:`strptime`:"
msgstr "下表提供了 :meth:`strftime` 与 :meth:`strptime` 的高层级比较："

#: ../../library/datetime.rst:2289
msgid "``strftime``"
msgstr "``strftime``"

#: ../../library/datetime.rst:2289
msgid "``strptime``"
msgstr "``strptime``"

#: ../../library/datetime.rst:2291
msgid "Usage"
msgstr "用法"

#: ../../library/datetime.rst:2291
msgid "Convert object to a string according to a given format"
msgstr "根据给定的格式将对象转换为字符串"

#: ../../library/datetime.rst:2291
msgid ""
"Parse a string into a :class:`.datetime` object given a corresponding format"
msgstr "将字符串解析为给定相应格式的 :class:`.datetime` 对象"

#: ../../library/datetime.rst:2293
msgid "Type of method"
msgstr "方法类型"

#: ../../library/datetime.rst:2293
msgid "Instance method"
msgstr "实例方法"

#: ../../library/datetime.rst:2293
msgid "Class method"
msgstr "类方法"

#: ../../library/datetime.rst:2295
msgid "Method of"
msgstr "方法"

#: ../../library/datetime.rst:2295
msgid ":class:`date`; :class:`.datetime`; :class:`.time`"
msgstr ":class:`date`; :class:`.datetime`; :class:`.time`"

#: ../../library/datetime.rst:2295
msgid ":class:`.datetime`"
msgstr ":class:`.datetime`"

#: ../../library/datetime.rst:2297
msgid "Signature"
msgstr "签名"

#: ../../library/datetime.rst:2297
msgid "``strftime(format)``"
msgstr "``strftime(format)``"

#: ../../library/datetime.rst:2297
msgid "``strptime(date_string, format)``"
msgstr "``strptime(date_string, format)``"

#: ../../library/datetime.rst:2302
msgid ":meth:`strftime` and :meth:`strptime` Format Codes"
msgstr ":meth:`strftime` 和 :meth:`strptime` Format Codes"

#: ../../library/datetime.rst:2304
msgid ""
"The following is a list of all the format codes that the 1989 C standard "
"requires, and these work on all platforms with a standard C implementation."
msgstr "以下列表显示了 1989 版 C 标准所要求的全部格式代码，它们在带有标准 C 实现的所有平台上均可用。"

#: ../../library/datetime.rst:2308 ../../library/datetime.rst:2411
msgid "Directive"
msgstr "指令"

#: ../../library/datetime.rst:2308 ../../library/datetime.rst:2411
msgid "Meaning"
msgstr "含意"

#: ../../library/datetime.rst:2308 ../../library/datetime.rst:2411
msgid "Example"
msgstr "示例"

#: ../../library/datetime.rst:2308 ../../library/datetime.rst:2411
msgid "Notes"
msgstr "备注"

#: ../../library/datetime.rst:2310
msgid "``%a``"
msgstr "``%a``"

#: ../../library/datetime.rst:2310
msgid "Weekday as locale's abbreviated name."
msgstr "当地工作日的缩写。"

#: ../../library/datetime.rst:0
msgid "Sun, Mon, ..., Sat (en_US);"
msgstr "Sun, Mon, ..., Sat (en_US);"

#: ../../library/datetime.rst:0
msgid "So, Mo, ..., Sa (de_DE)"
msgstr "So, Mo, ..., Sa (de_DE)"

#: ../../library/datetime.rst:2315
msgid "``%A``"
msgstr "``%A``"

#: ../../library/datetime.rst:2315
msgid "Weekday as locale's full name."
msgstr "本地化的星期中每日的完整名称。"

#: ../../library/datetime.rst:0
msgid "Sunday, Monday, ..., Saturday (en_US);"
msgstr "Sunday, Monday, ..., Saturday (en_US);"

#: ../../library/datetime.rst:0
msgid "Sonntag, Montag, ..., Samstag (de_DE)"
msgstr "Sonntag, Montag, ..., Samstag (de_DE)"

#: ../../library/datetime.rst:2320
msgid "``%w``"
msgstr "``%w``"

#: ../../library/datetime.rst:2320
msgid "Weekday as a decimal number, where 0 is Sunday and 6 is Saturday."
msgstr "以十进制数显示的工作日，其中0表示星期日，6表示星期六。"

#: ../../library/datetime.rst:2320
msgid "0, 1, ..., 6"
msgstr "0, 1, ..., 6"

#: ../../library/datetime.rst:2324
msgid "``%d``"
msgstr "``%d``"

#: ../../library/datetime.rst:2324
msgid "Day of the month as a zero-padded decimal number."
msgstr "补零后，以十进制数显示的月份中的一天。"

#: ../../library/datetime.rst:2324
msgid "01, 02, ..., 31"
msgstr "01, 02, ..., 31"

#: ../../library/datetime.rst:2324 ../../library/datetime.rst:2337
#: ../../library/datetime.rst:2340 ../../library/datetime.rst:2346
#: ../../library/datetime.rst:2349 ../../library/datetime.rst:2355
#: ../../library/datetime.rst:2373
msgid "\\(9)"
msgstr "\\(9)"

#: ../../library/datetime.rst:2327
msgid "``%b``"
msgstr "``%b``"

#: ../../library/datetime.rst:2327
msgid "Month as locale's abbreviated name."
msgstr "当地月份的缩写。"

#: ../../library/datetime.rst:0
msgid "Jan, Feb, ..., Dec (en_US);"
msgstr "Jan, Feb, ..., Dec (en_US);"

#: ../../library/datetime.rst:0
msgid "Jan, Feb, ..., Dez (de_DE)"
msgstr "Jan, Feb, ..., Dez (de_DE)"

#: ../../library/datetime.rst:2332
msgid "``%B``"
msgstr "``%B``"

#: ../../library/datetime.rst:2332
msgid "Month as locale's full name."
msgstr "本地化的月份全名。"

#: ../../library/datetime.rst:0
msgid "January, February, ..., December (en_US);"
msgstr "January, February, ..., December (en_US);"

#: ../../library/datetime.rst:0
msgid "Januar, Februar, ..., Dezember (de_DE)"
msgstr "Januar, Februar, ..., Dezember (de_DE)"

#: ../../library/datetime.rst:2337
msgid "``%m``"
msgstr "``%m``"

#: ../../library/datetime.rst:2337
msgid "Month as a zero-padded decimal number."
msgstr "补零后，以十进制数显示的月份。"

#: ../../library/datetime.rst:2337 ../../library/datetime.rst:2349
msgid "01, 02, ..., 12"
msgstr "01, 02, ..., 12"

#: ../../library/datetime.rst:2340
msgid "``%y``"
msgstr "``%y``"

#: ../../library/datetime.rst:2340
msgid "Year without century as a zero-padded decimal number."
msgstr "补零后，以十进制数表示的，不带世纪的年份。"

#: ../../library/datetime.rst:2340
msgid "00, 01, ..., 99"
msgstr "00, 01, ..., 99"

#: ../../library/datetime.rst:2343
msgid "``%Y``"
msgstr "``%Y``"

#: ../../library/datetime.rst:2343
msgid "Year with century as a decimal number."
msgstr "十进制数表示的带世纪的年份。"

#: ../../library/datetime.rst:2343 ../../library/datetime.rst:2413
msgid "0001, 0002, ..., 2013, 2014, ..., 9998, 9999"
msgstr "0001, 0002, ..., 2013, 2014, ..., 9998, 9999"

#: ../../library/datetime.rst:2346
msgid "``%H``"
msgstr "``%H``"

#: ../../library/datetime.rst:2346
msgid "Hour (24-hour clock) as a zero-padded decimal number."
msgstr "以补零后的十进制数表示的小时（24 小时制）。"

#: ../../library/datetime.rst:2346
msgid "00, 01, ..., 23"
msgstr "00, 01, ..., 23"

#: ../../library/datetime.rst:2349
msgid "``%I``"
msgstr "``%I``"

#: ../../library/datetime.rst:2349
msgid "Hour (12-hour clock) as a zero-padded decimal number."
msgstr "以补零后的十进制数表示的小时（12 小时制）。"

#: ../../library/datetime.rst:2352
msgid "``%p``"
msgstr "``%p``"

#: ../../library/datetime.rst:2352
msgid "Locale's equivalent of either AM or PM."
msgstr "本地化的 AM 或 PM 。"

#: ../../library/datetime.rst:0
msgid "AM, PM (en_US);"
msgstr "AM, PM (en_US);"

#: ../../library/datetime.rst:0
msgid "am, pm (de_DE)"
msgstr "am, pm (de_DE)"

#: ../../library/datetime.rst:2352
msgid "\\(1), \\(3)"
msgstr "\\(1), \\(3)"

#: ../../library/datetime.rst:2355
msgid "``%M``"
msgstr "``%M``"

#: ../../library/datetime.rst:2355
msgid "Minute as a zero-padded decimal number."
msgstr "补零后，以十进制数显示的分钟。"

#: ../../library/datetime.rst:2355 ../../library/datetime.rst:2358
msgid "00, 01, ..., 59"
msgstr "00, 01, ..., 59"

#: ../../library/datetime.rst:2358
msgid "``%S``"
msgstr "``%S``"

#: ../../library/datetime.rst:2358
msgid "Second as a zero-padded decimal number."
msgstr "补零后，以十进制数显示的秒。"

#: ../../library/datetime.rst:2358
msgid "\\(4), \\(9)"
msgstr "\\(4), \\(9)"

#: ../../library/datetime.rst:2361
msgid "``%f``"
msgstr "``%f``"

#: ../../library/datetime.rst:2361
msgid "Microsecond as a decimal number, zero-padded to 6 digits."
msgstr "微秒作为一个十进制数，零填充到 6 位。"

#: ../../library/datetime.rst:2361
msgid "000000, 000001, ..., 999999"
msgstr "000000, 000001, ..., 999999"

#: ../../library/datetime.rst:2361
msgid "\\(5)"
msgstr "\\(5)"

#: ../../library/datetime.rst:2365 ../../library/datetime.rst:2529
msgid "``%z``"
msgstr "``%z``"

#: ../../library/datetime.rst:2365
msgid ""
"UTC offset in the form ``±HHMM[SS[.ffffff]]`` (empty string if the object is"
" naive)."
msgstr "UTC 偏移量，格式为 ``±HHMM[SS[.ffffff]]`` （如果是简单型对象则为空字符串）。"

#: ../../library/datetime.rst:2365
msgid "(empty), +0000, -0400, +1030, +063415, -030712.345216"
msgstr "(空), +0000, -0400, +1030, +063415, -030712.345216"

#: ../../library/datetime.rst:2365 ../../library/datetime.rst:2370
msgid "\\(6)"
msgstr "\\(6)"

#: ../../library/datetime.rst:2370 ../../library/datetime.rst:2553
msgid "``%Z``"
msgstr "``%Z``"

#: ../../library/datetime.rst:2370
msgid "Time zone name (empty string if the object is naive)."
msgstr "时区名称（如果对象为简单型则为空字符串）。"

#: ../../library/datetime.rst:2370
msgid "(empty), UTC, GMT"
msgstr "(空), UTC, GMT"

#: ../../library/datetime.rst:2373
msgid "``%j``"
msgstr "``%j``"

#: ../../library/datetime.rst:2373
msgid "Day of the year as a zero-padded decimal number."
msgstr "以补零后的十进制数表示的一年中的日序号。"

#: ../../library/datetime.rst:2373
msgid "001, 002, ..., 366"
msgstr "001, 002, ..., 366"

#: ../../library/datetime.rst:2376
msgid "``%U``"
msgstr "``%U``"

#: ../../library/datetime.rst:2376
msgid ""
"Week number of the year (Sunday as the first day of the week) as a zero-"
"padded decimal number. All days in a new year preceding the first Sunday are"
" considered to be in week 0."
msgstr "以补零后的十进制数表示的一年中的周序号（星期日作为每周的第一天）。 在新的一年中第一个星期日之前的所有日子都被视为是在第 0 周。"

#: ../../library/datetime.rst:2376 ../../library/datetime.rst:2384
msgid "00, 01, ..., 53"
msgstr "00, 01, ..., 53"

#: ../../library/datetime.rst:2376 ../../library/datetime.rst:2384
msgid "\\(7), \\(9)"
msgstr "\\(7), \\(9)"

#: ../../library/datetime.rst:2384
msgid "``%W``"
msgstr "``%W``"

#: ../../library/datetime.rst:2384
msgid ""
"Week number of the year (Monday as the first day of the week) as a zero-"
"padded decimal number. All days in a new year preceding the first Monday are"
" considered to be in week 0."
msgstr "以补零后的十进制数表示的一年中的周序号（星期一作为每周的第一天）。 在新的一年中第一个星期一之前的所有日子都被视为是在第 0 周。"

#: ../../library/datetime.rst:2392
msgid "``%c``"
msgstr "``%c``"

#: ../../library/datetime.rst:2392
msgid "Locale's appropriate date and time representation."
msgstr "本地化的适当日期和时间表示。"

#: ../../library/datetime.rst:0
msgid "Tue Aug 16 21:30:00 1988 (en_US);"
msgstr "Tue Aug 16 21:30:00 1988 (en_US);"

#: ../../library/datetime.rst:0
msgid "Di 16 Aug 21:30:00 1988 (de_DE)"
msgstr "Di 16 Aug 21:30:00 1988 (de_DE)"

#: ../../library/datetime.rst:2397
msgid "``%x``"
msgstr "``%x``"

#: ../../library/datetime.rst:2397
msgid "Locale's appropriate date representation."
msgstr "本地化的适当日期表示。"

#: ../../library/datetime.rst:0
msgid "08/16/88 (None);"
msgstr "08/16/88 (None);"

#: ../../library/datetime.rst:0
msgid "08/16/1988 (en_US);"
msgstr "08/16/1988 (en_US);"

#: ../../library/datetime.rst:0
msgid "16.08.1988 (de_DE)"
msgstr "16.08.1988 (de_DE)"

#: ../../library/datetime.rst:2401
msgid "``%X``"
msgstr "``%X``"

#: ../../library/datetime.rst:2401
msgid "Locale's appropriate time representation."
msgstr "本地化的适当时间表示。"

#: ../../library/datetime.rst:0
msgid "21:30:00 (en_US);"
msgstr "21:30:00 (en_US);"

#: ../../library/datetime.rst:0
msgid "21:30:00 (de_DE)"
msgstr "21:30:00 (de_DE)"

#: ../../library/datetime.rst:2404
msgid "``%%``"
msgstr "``%%``"

#: ../../library/datetime.rst:2404
msgid "A literal ``'%'`` character."
msgstr "字面的 ``'%'`` 字符。"

#: ../../library/datetime.rst:2404
msgid "%"
msgstr "%"

#: ../../library/datetime.rst:2407
msgid ""
"Several additional directives not required by the C89 standard are included "
"for convenience. These parameters all correspond to ISO 8601 date values."
msgstr "为了方便起见，还包括了C89标准不需要的其他一些指示符。 这些参数都对应于 ISO 8601 日期值。"

#: ../../library/datetime.rst:2413
msgid "``%G``"
msgstr "``%G``"

#: ../../library/datetime.rst:2413
msgid ""
"ISO 8601 year with century representing the year that contains the greater "
"part of the ISO week (``%V``)."
msgstr "带有世纪的 ISO 8601 年份，表示包含大部分 ISO 星期 (``%V``) 的年份。"

#: ../../library/datetime.rst:2413
msgid "\\(8)"
msgstr "\\(8)"

#: ../../library/datetime.rst:2418
msgid "``%u``"
msgstr "``%u``"

#: ../../library/datetime.rst:2418
msgid "ISO 8601 weekday as a decimal number where 1 is Monday."
msgstr "以十进制数显示的 ISO 8601 星期中的日序号，其中 1 表示星期一。"

#: ../../library/datetime.rst:2418
msgid "1, 2, ..., 7"
msgstr "1, 2, ..., 7"

#: ../../library/datetime.rst:2421
msgid "``%V``"
msgstr "``%V``"

#: ../../library/datetime.rst:2421
msgid ""
"ISO 8601 week as a decimal number with Monday as the first day of the week. "
"Week 01 is the week containing Jan 4."
msgstr "以十进制数显示的 ISO 8601 星期，以星期一作为每周的第一天。 第 01 周为包含 1 月 4 日的星期。"

#: ../../library/datetime.rst:2421
msgid "01, 02, ..., 53"
msgstr "01, 02, ..., 53"

#: ../../library/datetime.rst:2421
msgid "\\(8), \\(9)"
msgstr "\\(8), \\(9)"

#: ../../library/datetime.rst:2428
msgid ""
"These may not be available on all platforms when used with the "
":meth:`strftime` method. The ISO 8601 year and ISO 8601 week directives are "
"not interchangeable with the year and week number directives above. Calling "
":meth:`strptime` with incomplete or ambiguous ISO 8601 directives will raise"
" a :exc:`ValueError`."
msgstr ""
"这些代码可能不是在所有平台上都可与 :meth:`strftime` 方法配合使用。 ISO 8601 年份和 ISO 8601 "
"星期指令并不能与上面的年份和星期序号指令相互替代。 调用 :meth:`strptime` 时传入不完整或有歧义的 ISO 8601 指令将引发 "
":exc:`ValueError`。"

#: ../../library/datetime.rst:2433
msgid ""
"The full set of format codes supported varies across platforms, because "
"Python calls the platform C library's :func:`strftime` function, and "
"platform variations are common. To see the full set of format codes "
"supported on your platform, consult the :manpage:`strftime(3)` "
"documentation. There are also differences between platforms in handling of "
"unsupported format specifiers."
msgstr ""
"对完整格式代码集的支持在不同平台上有所差异，因为 Python 要调用所在平台的 C 库的 :func:`strftime` "
"函数，而不同平台的差异是很常见的。 要查看你所用平台所支持的完整格式代码集，请参阅 :manpage:`strftime(3)` "
"文档。不同的平台在处理不支持的格式指定符方面也有差异。"

#: ../../library/datetime.rst:2439
msgid "``%G``, ``%u`` and ``%V`` were added."
msgstr "增加了 ``%G``,  ``%u``  和 ``%V``。"

#: ../../library/datetime.rst:2443
msgid "Technical Detail"
msgstr "技术细节"

#: ../../library/datetime.rst:2445
msgid ""
"Broadly speaking, ``d.strftime(fmt)`` acts like the :mod:`time` module's "
"``time.strftime(fmt, d.timetuple())`` although not all objects support a "
":meth:`timetuple` method."
msgstr ""
"总体而言，``d.strftime(fmt)`` 类似于 :mod:`time` 模块的 ``time.strftime(fmt, "
"d.timetuple())``，但是并非所有对象都支持 :meth:`timetuple` 方法。"

#: ../../library/datetime.rst:2449
msgid ""
"For the :meth:`datetime.strptime` class method, the default value is "
"``1900-01-01T00:00:00.000``: any components not specified in the format "
"string will be pulled from the default value. [#]_"
msgstr ""
"对于 :meth:`datetime.strptime` 类方法，默认值为 ``1900-01-01T00:00:00.000``: "
"任何未在格式字符串中指定的部分都将从默认值中提取。 [#]_"

#: ../../library/datetime.rst:2453
msgid "Using ``datetime.strptime(date_string, format)`` is equivalent to::"
msgstr "使用 ``datetime.strptime(date_string, format)`` 等价于::"

#: ../../library/datetime.rst:2457
msgid ""
"except when the format includes sub-second components or timezone offset "
"information, which are supported in ``datetime.strptime`` but are discarded "
"by ``time.strptime``."
msgstr ""
"除非格式中包含秒以下的部分或时区差值信息，它们在 ``datetime.strptime`` 中受支持但会被 ``time.strptime`` "
"所丢弃。"

#: ../../library/datetime.rst:2461
msgid ""
"For :class:`.time` objects, the format codes for year, month, and day should"
" not be used, as :class:`time` objects have no such values. If they're used "
"anyway, ``1900`` is substituted for the year, and ``1`` for the month and "
"day."
msgstr ""
"对于 :class:`.time` 对象，年、月、日的格式代码不应被使用，因为 :class:`time` 对象没有这些值。 "
"如果它们被使用，则年份将被替换为 ``1900``，而月和日将被替换为 ``1``。"

#: ../../library/datetime.rst:2465
msgid ""
"For :class:`date` objects, the format codes for hours, minutes, seconds, and"
" microseconds should not be used, as :class:`date` objects have no such "
"values. If they're used anyway, ``0`` is substituted for them."
msgstr ""
"对于 :class:`date` 对象，时、分、秒和微秒的格式代码不应被使用，因为 :class:`date` 对象没有这些值。 "
"如果它们被使用，则它们都将被替换为 ``0``。"

#: ../../library/datetime.rst:2469
msgid ""
"For the same reason, handling of format strings containing Unicode code "
"points that can't be represented in the charset of the current locale is "
"also platform-dependent. On some platforms such code points are preserved "
"intact in the output, while on others ``strftime`` may raise "
":exc:`UnicodeError` or return an empty string instead."
msgstr ""
"出于相同的原因，对于包含当前区域设置字符集所无法表示的 Unicode 码位的格式字符串的处理方式也取决于具体平台。 "
"在某些平台上这样的码位会不加修改地原样输出，而在其他平台上 ``strftime`` 则可能引发 :exc:`UnicodeError` "
"或只返回一个空字符串。"

#: ../../library/datetime.rst:2478
msgid ""
"Because the format depends on the current locale, care should be taken when "
"making assumptions about the output value. Field orderings will vary (for "
"example, \"month/day/year\" versus \"day/month/year\"), and the output may "
"contain Unicode characters encoded using the locale's default encoding (for "
"example, if the current locale is ``ja_JP``, the default encoding could be "
"any one of ``eucJP``, ``SJIS``, or ``utf-8``; use :meth:`locale.getlocale` "
"to determine the current locale's encoding)."
msgstr ""
"由于此格式依赖于当前区域设置，因此对具体输出值应当保持谨慎预期。 字段顺序会发生改变（例如 \"month/day/year\" 与 "
"\"day/month/year\"），并且输出可能包含使用区域设置所指定的默认编码格式的 Unicode 字符（例如如果当前区域为 "
"``ja_JP``，则默认编码格式可能为 ``eucJP``, ``SJIS`` 或 ``utf-8`` 中的一个；使用 "
":meth:`locale.getlocale` 可确定当前区域设置的编码格式）。"

#: ../../library/datetime.rst:2487
msgid ""
"The :meth:`strptime` method can parse years in the full [1, 9999] range, but"
" years < 1000 must be zero-filled to 4-digit width."
msgstr ""
":meth:`strptime` 方法能够解析整个 [1, 9999] 范围内的年份，但 < 1000 的年份必须加零填充为 4 位数字宽度。"

#: ../../library/datetime.rst:2490
msgid ""
"In previous versions, :meth:`strftime` method was restricted to years >= "
"1900."
msgstr "在之前的版本中，:meth:`strftime` 方法只限于 >= 1900 的年份。"

#: ../../library/datetime.rst:2494
msgid ""
"In version 3.2, :meth:`strftime` method was restricted to years >= 1000."
msgstr "在版本3.2中，:meth:`strftime` 方法只限于 years >= 1000。"

#: ../../library/datetime.rst:2499
msgid ""
"When used with the :meth:`strptime` method, the ``%p`` directive only "
"affects the output hour field if the ``%I`` directive is used to parse the "
"hour."
msgstr "当与 :meth:`strptime` 方法一起使用时，如果使用 ``%I`` 指令来解析小时，``%p`` 指令只影响输出小时字段。"

#: ../../library/datetime.rst:2503
msgid ""
"Unlike the :mod:`time` module, the :mod:`datetime` module does not support "
"leap seconds."
msgstr "与 :mod:`time` 模块不同的是， :mod:`datetime` 模块不支持闰秒。"

#: ../../library/datetime.rst:2507
msgid ""
"When used with the :meth:`strptime` method, the ``%f`` directive accepts "
"from one to six digits and zero pads on the right. ``%f`` is an extension to"
" the set of format characters in the C standard (but implemented separately "
"in datetime objects, and therefore always available)."
msgstr ""
"当与 :meth:`strptime` 方法一起使用时，``%f`` 指令可接受一至六个数码及左边的零填充。 ``%f`` 是对 C "
"标准中格式字符集的扩展（但单独在 datetime 对象中实现，因此它总是可用）。"

#: ../../library/datetime.rst:2514
msgid ""
"For a naive object, the ``%z`` and ``%Z`` format codes are replaced by empty"
" strings."
msgstr "对于简单型对象，``%z`` and ``%Z`` 格式代码会被替换为空字符串。"

#: ../../library/datetime.rst:2517
msgid "For an aware object:"
msgstr "对于一个感知型对象而言："

#: ../../library/datetime.rst:2520
msgid ""
":meth:`utcoffset` is transformed into a string of the form "
"``±HHMM[SS[.ffffff]]``, where ``HH`` is a 2-digit string giving the number "
"of UTC offset hours, ``MM`` is a 2-digit string giving the number of UTC "
"offset minutes, ``SS`` is a 2-digit string giving the number of UTC offset "
"seconds and ``ffffff`` is a 6-digit string giving the number of UTC offset "
"microseconds. The ``ffffff`` part is omitted when the offset is a whole "
"number of seconds and both the ``ffffff`` and the ``SS`` part is omitted "
"when the offset is a whole number of minutes. For example, if "
":meth:`utcoffset` returns ``timedelta(hours=-3, minutes=-30)``, ``%z`` is "
"replaced with the string ``'-0330'``."
msgstr ""
":meth:`utcoffset` 会被转换为 ``±HHMM[SS[.ffffff]]`` 形式的字符串，其中 ``HH`` 为给出 UTC "
"时差的小时部分的 2 位数码字符串，``MM`` 为给出 UTC 时差的分钟部分的 2 位数码字符串，``SS`` 为给出 UTC 时差的秒部分的 2 "
"位数码字符串，而 ``ffffff`` 为给出 UTC 时差的微秒部分的 6 位数码字符串。 当时差为整数秒时 ``ffffff`` "
"部分将被省略，而当时差为整数分钟时 ``ffffff`` 和 ``SS`` 部分都将被省略。 例如，如果 :meth:`utcoffset` 返回 "
"``timedelta(hours=-3, minutes=-30)``，则 ``%z`` 会被替换为字符串 ``'-0330'``。"

#: ../../library/datetime.rst:2534
msgid ""
"When the ``%z`` directive is provided to the  :meth:`strptime` method, the "
"UTC offsets can have a colon as a separator between hours, minutes and "
"seconds. For example, ``'+01:00:00'`` will be parsed as an offset of one "
"hour. In addition, providing ``'Z'`` is identical to ``'+00:00'``."
msgstr ""
"当提供 ``%z`` 指令给 :meth:`strptime` 方法时，UTC 差值可以在时、分和秒之间使用冒号分隔符。 "
"例如，``'+01:00:00'`` 将被解读为一小时的差值。 此外，提供 ``'Z'`` 就相当于 ``'+00:00'``。"

#: ../../library/datetime.rst:2542
msgid ""
"In :meth:`strftime`, ``%Z`` is replaced by an empty string if :meth:`tzname`"
" returns ``None``; otherwise ``%Z`` is replaced by the returned value, which"
" must be a string."
msgstr ""
"在 :meth:`strftime` 中，如果 :meth:`tzname` 返回 ``None`` 则 ``%Z`` "
"会被替换为一个空字符串；在其他情况下 ``%Z`` 会被替换为返回值，该值必须为一个字符串。"

#: ../../library/datetime.rst:2546
msgid ":meth:`strptime` only accepts certain values for ``%Z``:"
msgstr ":meth:`strptime` 仅接受特定的 ``%Z`` 值:"

#: ../../library/datetime.rst:2548
msgid "any value in ``time.tzname`` for your machine's locale"
msgstr "你的机器的区域设置可以是 ``time.tzname`` 中的任何值"

#: ../../library/datetime.rst:2549
msgid "the hard-coded values ``UTC`` and ``GMT``"
msgstr "硬编码的值 ``UTC`` 和 ``GMT``"

#: ../../library/datetime.rst:2551
msgid ""
"So someone living in Japan may have ``JST``, ``UTC``, and ``GMT`` as valid "
"values, but probably not ``EST``. It will raise ``ValueError`` for invalid "
"values."
msgstr ""
"这样生活在日本的人可用的值为 ``JST``, ``UTC`` 和 ``GMT``，但可能没有 ``EST``。 它将引发 ``ValueError``"
" 表示无效的值。"

#: ../../library/datetime.rst:2555
msgid ""
"When the ``%z`` directive is provided to the :meth:`strptime` method, an "
"aware :class:`.datetime` object will be produced. The ``tzinfo`` of the "
"result will be set to a :class:`timezone` instance."
msgstr ""
"当提供 ``%z`` 指令给 :meth:`strptime` 方法时，将产生一个感知型 :class:`.datetime` 对象。 结果的 "
"``tzinfo`` 将被设为一个 :class:`timezone` 实例。"

#: ../../library/datetime.rst:2561
msgid ""
"When used with the :meth:`strptime` method, ``%U`` and ``%W`` are only used "
"in calculations when the day of the week and the calendar year (``%Y``) are "
"specified."
msgstr ""
"当与 :meth:`strptime` 方法一起使用时，``%U`` 和 ``%W`` 仅用于指定星期几和日历年份 (``%Y``) 的计算。"

#: ../../library/datetime.rst:2566
msgid ""
"Similar to ``%U`` and ``%W``, ``%V`` is only used in calculations when the "
"day of the week and the ISO year (``%G``) are specified in a "
":meth:`strptime` format string. Also note that ``%G`` and ``%Y`` are not "
"interchangeable."
msgstr ""
"类似于 ``%U`` 和 ``%W``，``%V`` 仅用于在 :meth:`strptime` 格式字符串中指定星期几和 ISO 年份 "
"(``%G``) 的计算。 还要注意 ``%G`` 和 ``%Y`` 是不可交换的。"

#: ../../library/datetime.rst:2572
msgid ""
"When used with the :meth:`strptime` method, the leading zero is optional for"
"  formats ``%d``, ``%m``, ``%H``, ``%I``, ``%M``, ``%S``, ``%J``, ``%U``, "
"``%W``, and ``%V``. Format ``%y`` does require a leading zero."
msgstr ""

#: ../../library/datetime.rst:2577
msgid "Footnotes"
msgstr "备注"

#: ../../library/datetime.rst:2578
msgid "If, that is, we ignore the effects of Relativity"
msgstr "就是说如果我们忽略相对论效应的话。"

#: ../../library/datetime.rst:2580
msgid ""
"This matches the definition of the \"proleptic Gregorian\" calendar in "
"Dershowitz and Reingold's book *Calendrical Calculations*, where it's the "
"base calendar for all computations. See the book for algorithms for "
"converting between proleptic Gregorian ordinals and many other calendar "
"systems."
msgstr ""
"这与 Dershowitz 和 Reingold 所著 *Calendrical Calculations* "
"中“预期格列高利”历法的定义一致，它是适用于该书中所有运算的基础历法。 请参阅该书了解在预期格利高利历序列与许多其他历法系统之间进行转换的算法。"

#: ../../library/datetime.rst:2586
msgid ""
"See R. H. van Gent's `guide to the mathematics of the ISO 8601 calendar "
"<https://www.staff.science.uu.nl/~gent0113/calendar/isocalendar.htm>`_ for a"
" good explanation."
msgstr ""

#: ../../library/datetime.rst:2590
msgid ""
"Passing ``datetime.strptime('Feb 29', '%b %d')`` will fail since ``1900`` is"
" not a leap year."
msgstr "传入 ``datetime.strptime('Feb 29', '%b %d')`` 将导致错误，因为 ``1900`` 不是闰年。"