Reuse UTC timezone from dates.py

Alexis Bienvenüe · Alexis Bienvenüe · commit 76bec02fc212 · 2016-11-02T15:20:30.000+01:00
diff --git a/lib/matplotlib/backends/backend_pdf.py b/lib/matplotlib/backends/backend_pdf.py
@@ -46,6 +46,7 @@
 from matplotlib.mathtext import MathTextParser
 from matplotlib.transforms import Affine2D, BboxBase
 from matplotlib.path import Path
+from matplotlib.dates import UTC
 from matplotlib import _path
 from matplotlib import _png
 from matplotlib import ttconv
@@ -136,20 +137,6 @@ def _string_escape(match):
     assert False
 
 
-# tzinfo class for UTC
-class UTCtimezone(tzinfo):
-    """UTC timezone"""
-
-    def utcoffset(self, dt):
-        return timedelta(0)
-
-    def tzname(self, dt):
-        return "UTC"
-
-    def dst(self, dt):
-        return timedelta(0)
-
-
 def pdfRepr(obj):
     """Map Python objects to PDF syntax."""
 
@@ -492,7 +479,7 @@ def __init__(self, filename):
         source_date_epoch = os.getenv("SOURCE_DATE_EPOCH")
         if source_date_epoch:
             source_date = datetime.utcfromtimestamp(int(source_date_epoch))
-            source_date = source_date.replace(tzinfo=UTCtimezone())
+            source_date = source_date.replace(tzinfo=UTC)
         else:
             source_date = datetime.today()
 
