diff --git a/backend/main.py b/backend/main.py
index 76822ec6..fd0efd78 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -4,6 +4,8 @@ from fastapi import FastAPI
 from multiprocessing import freeze_support
 from api.core import Exceptions,Middleware,Gzip
 import uvicorn
+import os
+import time
 
 application = FastAPI(docs_url='/doc', redoc_url=None)
 application.add_exception_handler(Exception, Exceptions.all_exception_handler)
@@ -19,6 +21,8 @@ if __name__ == '__main__':
         print("dcalc is starting...")
         return print("Application starting...")
 
+    os.environ['TZ'] = 'Asia/Shanghai'
+    time.tzset()
     uvicorn.run(app = "main:application", host='0.0.0.0', port=config.PORT, workers=config.WORKERS,reload=False)
 
 
diff --git a/backend/mcpServer.py b/backend/mcpServer.py
index b3849b9f..d1d8d18c 100644
--- a/backend/mcpServer.py
+++ b/backend/mcpServer.py
@@ -1,4 +1,7 @@
 
+import os
+import time
+
 from fastmcp import FastMCP
 from main import application
 from fastmcp.server.providers.openapi import  MCPType
@@ -19,4 +22,7 @@ mcp = FastMCP.from_fastapi(
     route_map_fn=custom_route_mapper,
 )
 
+
+os.environ['TZ'] = 'Asia/Shanghai'
+time.tzset()
 mcp.run(transport="streamable-http", host="0.0.0.0", port=config.MCPPORT)