fixup

Author: JackEAllen

mantidimaging/eyes_tests/live_viewer_window_test.py

@@ -5,6 +5,7 @@
 from unittest import mock
 import numpy as np
 import os
+import platform
 import time
 from mantidimaging.core.operations.loader import load_filter_packages
 from mantidimaging.gui.windows.live_viewer.model import Image_Data
@@ -18,8 +19,12 @@ class LiveViewerWindowTest(FakeFSTestCase, BaseEyesTest):
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.initial_time = 4000.0
-        os.environ['TZ'] = 'UTC'
-        time.tzset()
+        if platform.system() == 'Windows':
+            os.environ['TZ'] = 'UTC'
+            time.tzset()
+        elif platform.system() == 'Linux':
+            os.environ['TZ'] = 'UTC'
+            os.system('timedatectl set-timezone UTC')
 
     @classmethod
     def setUpClass(cls) -> None: