diff --git a/filebeat/tests/system/test_modules.py b/filebeat/tests/system/test_modules.py
index 874c1ae35e7..6a22c8f55cf 100644
--- a/filebeat/tests/system/test_modules.py
+++ b/filebeat/tests/system/test_modules.py
@@ -4,6 +4,7 @@
 import unittest
 import glob
 import subprocess
+import time
 
 from elasticsearch import Elasticsearch
 import json
@@ -114,6 +115,9 @@ def run_on_file(self, module, fileset, test_file, cfgfile):
             pass
         self.wait_until(lambda: not self.es.indices.exists(self.index_name))
 
+        os.environ['TZ'] = 'Etc/UTC'
+        time.tzset()
+
         cmd = [
             self.filebeat, "-systemTest",
             "-e", "-d", "*", "-once",