tests: Set TZ to a real timezone

POSIX states that the offset is not optional in the TZ environment
variable.

Link: https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap08.html

1 files changed, 1 insertions, 1 deletions

diff --git a/tests.sh b/tests.sh
index c488aec..f94a255 100755
--- a/tests.sh
+++ b/tests.sh
@@ -21,7 +21,7 @@ set -o physical
 umask 022
 
 export LC_ALL=C
-export TZ=UTC
+export TZ=UTC0
 
 export ASAN_OPTIONS="abort_on_error=1"
 export LSAN_OPTIONS="abort_on_error=1"