--- mono-4.4.1/mcs/class/monodoc/Monodoc/storage/ZipStorage.cs.orig	2018-11-26 22:16:25.008879747 +0100
+++ mono-4.4.1/mcs/class/monodoc/Monodoc/storage/ZipStorage.cs	2018-11-26 22:21:53.969770985 +0100
@@ -74,6 +74,12 @@
 				id = GetNewCode ();
 
 			ZipEntry entry = new ZipEntry (id);
+			var SOURCE_DATE_EPOCH_string = Environment.GetEnvironmentVariable("SOURCE_DATE_EPOCH");
+			if (SOURCE_DATE_EPOCH_string != null)
+			{
+				var SOURCE_DATE_EPOCH = Convert.ToInt64(SOURCE_DATE_EPOCH_string);
+				entry.DateTime = new DateTime(SOURCE_DATE_EPOCH, DateTimeKind.Utc);
+			}
 			zipOutput.PutNextEntry (entry);
 		}
 
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<tr><td><span title='2021-05-10 22:34:43 -0400'>2021-05-10</span></td><td><a href='/guix/commit/po/doc/guix-manual.ru.po?id=21fcced608c93e1ac836cdd9ab8c5d200c667e75'>nls: Update translations.</a></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2021-04-18 13:18:34 +0200'>2021-04-18</span></td><td><a href='/guix/commit/po/doc/guix-manual.ru.po?id=0cfe02cf55baf8ef1395bc8f108672159355f606'>nls: Update 'ru' translation.</a></td><td>Julien Lepiller</td></tr>
<tr><td><span title='2020-11-05 16:42:38 +0100'>2020-11-05</span></td><td><a href='/guix/commit/po/doc/guix-manual.ru.po?id=eff2cabdde1077928868d06ac197f03f114f03fe'>nls: Update translations of the manual.</a></td><td>Julien Lepiller</td></tr>
<tr><td><span title='2020-10-29 20:19:05 +0100'>2020-10-29</span></td><td><a href='/guix/commit/po/doc/guix-manual.ru.po?id=759774bc69e91c9db6f5070b75d5a5fe9b36c04b'>nls: Update 'ru' translation of the manual.</a></td><td>Julien Lepiller</td></tr>
<tr><td><span title='2020-05-05 23:45:56 +0200'>2020-05-05</span></td><td><a href='/guix/commit/po/doc/guix-manual.ru.po?id=0701274446bbd39b053a0c65947fd7f1319f7bf6'>nls: Update.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-04-12 00:18:05 +0200'>2020-04-12</span></td><td><a href='/guix/commit/po/doc/guix-manual.ru.po?id=935ef44b398353b5b6af94e185d7b0c3d833db0b'>nls: Update.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2020-03-23 00:06:58 +0100'>2020-03-23</span></td><td><a href='/guix/commit/po/doc/guix-manual.ru.po?id=86603d8660e42a3b5d8b407e456a98429943bc7e'>nls: Update.</a></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2019-05-13 10:46:03 +0200'>2019-05-13</span></td><td><a href='/guix/commit/po/doc/guix-manual.ru.po?id=3bac7e6495934de9913e6186d954d1331883e064'>doc: Add Russian translation.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>