diff --git a/utils/wechat/message_to_db.py b/utils/wechat/message_to_db.py
index f6209fa..7392bd4 100644
--- a/utils/wechat/message_to_db.py
+++ b/utils/wechat/message_to_db.py
@@ -475,10 +475,10 @@ class MessageStorage:
 
                 if time_diff < timedelta(hours=3):
                     # 小于 3 小时，取 8 小时前
-                    last_summary_time = (current_time - timedelta(hours=8)).strftime('%Y-%m-%d %H:%M:%S')
+                    last_summary_time = (current_time - timedelta(hours=24)).strftime('%Y-%m-%d %H:%M:%S')
                 elif time_diff > timedelta(days=1):
                     # 大于 24 小时，取 10 小时前
-                    last_summary_time = (current_time - timedelta(hours=24)).strftime('%Y-%m-%d %H:%M:%S')
+                    last_summary_time = (current_time - timedelta(hours=48)).strftime('%Y-%m-%d %H:%M:%S')
 
             # 更新 Redis 存储的当前时间
             redis_conn.set(key, current_date)