diff --git a/t/ui/21-admin-needles.t b/t/ui/21-admin-needles.t
index 05cdce44286b..49e7294edc75 100644
--- a/t/ui/21-admin-needles.t
+++ b/t/ui/21-admin-needles.t
@@ -2,6 +2,8 @@
 # Copyright 2014-2020 SUSE LLC
 # SPDX-License-Identifier: GPL-2.0-or-later
 
+BEGIN { $ENV{TZ} = 'UTC' }
+
 use Test::Most;
 
 use FindBin;