File reproducible.patch of Package python-Babel

diff --git a/babel/messages/catalog.py b/babel/messages/catalog.py
index f84a5bd..786d1a4 100644
--- a/babel/messages/catalog.py
+++ b/babel/messages/catalog.py
@@ -11,6 +11,8 @@ from __future__ import annotations
 
 import datetime
 import re
+import time
+import os
 from collections.abc import Iterable, Iterator
 from copy import copy
 from difflib import SequenceMatcher
@@ -385,7 +387,9 @@ class Catalog:
         self.charset = charset or 'utf-8'
 
         if creation_date is None:
-            creation_date = datetime.datetime.now(LOCALTZ)
+            creation_date = datetime.datetime.utcfromtimestamp(
+                int(os.environ.get('SOURCE_DATE_EPOCH', time.time()))
+            )
         elif isinstance(creation_date, datetime.datetime) and not creation_date.tzinfo:
             creation_date = creation_date.replace(tzinfo=LOCALTZ)
         self.creation_date = creation_date