diff --git a/PyGreSQL.spec b/PyGreSQL.spec
index 43a5c73..c072de5 100644
--- a/PyGreSQL.spec
+++ b/PyGreSQL.spec
@@ -5,7 +5,7 @@
 
 Name:		%{srcname}
 Version:	5.0
-Release:	2%{?dist}
+Release:	3%{?dist}
 Summary:	%{sum}
 
 Group:		Applications/Databases
@@ -98,7 +98,7 @@ pgdb=unittest
 
 pg_start ()
 {
-	initdb "$pgdatadir" -U $(id -u -n) \
+	TZ=UTC initdb "$pgdatadir" -U $(id -u -n) \
 		--auth-local=peer --auth-host=ident
 	pg_ctl -D "$pgdatadir" -l logfile start -o "-k $pghost -p $pgport" -w
 }
@@ -128,6 +128,9 @@ EOF
 
 
 %changelog
+* Mon Mar 21 2016 Pavel Raiskup <praiskup@redhat.com> - 5.0-3
+- hardcode TZ=UTC
+
 * Mon Mar 21 2016 Pavel Raiskup <praiskup@redhat.com> - 5.0-2
 - use %%python_provide macro according to Python packaging guidelines
 - allow disabling the testsuite by 'rpmbuild --define "runselftest 0"'