diff --git a/reference/forms/types/birthday.rst b/reference/forms/types/birthday.rst
index d77551c3b29..d47aa02b6f5 100644
--- a/reference/forms/types/birthday.rst
+++ b/reference/forms/types/birthday.rst
@@ -28,9 +28,7 @@ option defaults to 120 years ago to the current year.
 |                      | - `empty_value`_                                                              |
 |                      | - `format`_                                                                   |
 |                      | - `input`_                                                                    |
-|                      | - `model_timezone`_                                                           |
 |                      | - `months`_                                                                   |
-|                      | - `view_timezone`_                                                            |
 |                      | - `widget`_                                                                   |
 |                      |                                                                               |
 |                      | from the :doc:`form </reference/forms/types/form>` type:                      |
@@ -72,12 +70,8 @@ These options inherit from the :doc:`date </reference/forms/types/date>` type:
 
 .. include:: /reference/forms/types/options/date_input.rst.inc
 
-.. include:: /reference/forms/types/options/model_timezone.rst.inc
-
 .. include:: /reference/forms/types/options/months.rst.inc
 
-.. include:: /reference/forms/types/options/view_timezone.rst.inc
-
 .. include:: /reference/forms/types/options/date_widget.rst.inc
 
 These options inherit from the :doc:`form </reference/forms/types/form>` type:
diff --git a/reference/forms/types/date.rst b/reference/forms/types/date.rst
index 994ff6156b3..42ab095cdbd 100644
--- a/reference/forms/types/date.rst
+++ b/reference/forms/types/date.rst
@@ -11,6 +11,11 @@ The underlying data used for this field type can be a ``DateTime`` object,
 a string, a timestamp or an array. As long as the `input`_ option is set
 correctly, the field will take care of all of the details.
 
+.. note::
+
+    In case of ``DateTime`` the timezone is ignored.
+    Only year, month and day are used.
+
 The field can be rendered as a single text box, three text boxes (month,
 day, and year) or three select boxes (see the `widget`_ option).
 
@@ -23,9 +28,7 @@ day, and year) or three select boxes (see the `widget`_ option).
 |                      | - `empty_value`_                                                            |
 |                      | - `format`_                                                                 |
 |                      | - `input`_                                                                  |
-|                      | - `model_timezone`_                                                         |
 |                      | - `months`_                                                                 |
-|                      | - `view_timezone`_                                                          |
 |                      | - `widget`_                                                                 |
 |                      | - `years`_                                                                  |
 +----------------------+-----------------------------------------------------------------------------+
@@ -109,12 +112,8 @@ Alternatively, you can specify a string to be displayed for the "blank" value::
 
 .. include:: /reference/forms/types/options/date_input.rst.inc
 
-.. include:: /reference/forms/types/options/model_timezone.rst.inc
-
 .. include:: /reference/forms/types/options/months.rst.inc
 
-.. include:: /reference/forms/types/options/view_timezone.rst.inc
-
 .. include:: /reference/forms/types/options/date_widget.rst.inc
 
 .. include:: /reference/forms/types/options/years.rst.inc
diff --git a/reference/forms/types/time.rst b/reference/forms/types/time.rst
index 71b3af1cdb5..0126934360e 100644
--- a/reference/forms/types/time.rst
+++ b/reference/forms/types/time.rst
@@ -10,6 +10,11 @@ This can be rendered as a text field, a series of text fields (e.g. hour,
 minute, second) or a series of select fields. The underlying data can be stored
 as a ``DateTime`` object, a string, a timestamp or an array.
 
+.. note::
+
+    In case of ``DateTime`` the timezone is ignored.
+    Only hour, minutes and seconds are used.
+
 +----------------------+-----------------------------------------------------------------------------+
 | Underlying Data Type | can be ``DateTime``, string, timestamp, or array (see the ``input`` option) |
 +----------------------+-----------------------------------------------------------------------------+
@@ -19,9 +24,7 @@ as a ``DateTime`` object, a string, a timestamp or an array.
 |                      | - `hours`_                                                                  |
 |                      | - `input`_                                                                  |
 |                      | - `minutes`_                                                                |
-|                      | - `model_timezone`_                                                         |
 |                      | - `seconds`_                                                                |
-|                      | - `view_timezone`_                                                          |
 |                      | - `widget`_                                                                 |
 |                      | - `with_minutes`_                                                           |
 |                      | - `with_seconds`_                                                           |
@@ -99,12 +102,8 @@ this format.
 
 .. include:: /reference/forms/types/options/minutes.rst.inc
 
-.. include:: /reference/forms/types/options/model_timezone.rst.inc
-
 .. include:: /reference/forms/types/options/seconds.rst.inc
 
-.. include:: /reference/forms/types/options/view_timezone.rst.inc
-
 widget
 ~~~~~~