--- a/debian/patches/reproducible-build.patch	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/reproducible-build.patch	2019-09-06 08:46:15.792081807 +0100
@@ -0,0 +1,15 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby@debian.org>
+Last-Update: 2019-09-06
+
+--- libnbd-1.0.0.orig/podwrapper.pl.in
++++ libnbd-1.0.0/podwrapper.pl.in
+@@ -227,7 +227,7 @@ if (!$date && -d $filename) {
+     $date = $1 if /^(\d+-\d+-\d+)\s/;
+ }
+ if (!$date) {
+-    my ($day, $month, $year) = (localtime)[3,4,5];
++    my ($day, $month, $year) = (gmtime($ENV{SOURCE_DATE_EPOCH} || time))[3,4,5];
+     $date = sprintf ("%04d-%02d-%02d", $year+1900, $month+1, $day);
+ }
+ 
--- a/debian/patches/series	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/series	2019-09-06 08:46:14.824072014 +0100
@@ -0,0 +1 @@
+reproducible-build.patch