diff --git a/tasks.py b/tasks.py
index 7e8e273..3000c4a 100644
--- a/tasks.py
+++ b/tasks.py
@@ -202,6 +202,10 @@ def scheduled_task_sync_wx_info(self, redis_config, kafka_config, gewe_config):
 def scheduled_task_add_contacts_from_chatrooms(self, redis_config, kafka_config, gewe_config):
     async def task():
         try:
+            now = datetime.datetime.now()
+            if now.hour < 8:
+                logger.info(f"定时群成员定时添好友任务不启动,当前时间为 {now.strftime('%Y-%m-%d %H:%M:%S')}，早于8点")
+                return
             logger.info('定时群成员定时添好友任务开始')
             redis_service = RedisService()
             await redis_service.init(**redis_config)
@@ -250,7 +254,7 @@ def scheduled_task_add_contacts_from_chatrooms(self, redis_config, kafka_config,
                     contact_wxids_set = set(contact_wxids)
                     # for admin_wxid in admin_wxids:
                     #     contact_wxids_set.add(admin_wxid)
-                    contact_wxids_set.update(admin_wxids) 
+                    contact_wxids_set.update(set(admin_wxids))
                     if chatroom_owner_wxid is not None:
                         contact_wxids_set.add(chatroom_owner_wxid)