diff --git a/api/app.py b/api/app.py
index 0a4381320128e7..4b7c35e91a84d3 100644
--- a/api/app.py
+++ b/api/app.py
@@ -10,6 +10,7 @@
         import grpc.experimental.gevent
         grpc.experimental.gevent.init_gevent()
 
+import time
 import logging
 import json
 import threading
@@ -36,6 +37,9 @@
 import warnings
 warnings.simplefilter("ignore", ResourceWarning)
 
+os.environ['TZ'] = 'UTC'
+time.tzset()
+
 
 class DifyApp(Flask):
     pass