Merge pull request #2440 from xhochy/bugfix/source_date_epoch

Fix wrong import for gmtime

sphinx/util/i18n.py

@@ -14,7 +14,7 @@ import os
 import re
 import warnings
 from os import path
-from time import time
+from time import time, gmtime
 from datetime import datetime
 from collections import namedtuple
 
@@ -188,7 +188,7 @@ def format_date(format, date=None, language=None, warn=None):
         # See https://wiki.debian.org/ReproducibleBuilds/TimestampsProposal
         source_date_epoch = os.getenv('SOURCE_DATE_EPOCH')
         if source_date_epoch is not None:
-            date = time.gmtime(float(source_date_epoch))
+            date = gmtime(float(source_date_epoch))
         else:
             date = datetime.now()