diff --git a/database.py b/database.py
index 4806c6f..5f4e74d 100644
--- a/database.py
+++ b/database.py
@@ -7,6 +7,7 @@ import json
 from datetime import datetime, timedelta, timezone
 from typing import List, Optional, Dict, Any
 import os
+from flask import current_app
 
 
 class Database:
@@ -322,7 +323,7 @@ class Database:
         total = cursor.fetchone()['total']
 
         # 使用本地时区计算今日和本周的 UTC 时间范围
-        local_tz = pytz.timezone(self.timezone)
+        local_tz = pytz.timezone(current_app.config['TIMEZONE'])
         local_now = datetime.now(local_tz)
 
         # 今日本地时间的开始和结束