diff --git a/src/twitter.py b/src/twitter.py
index 5f8a7fa..e156a7f 100644
--- a/src/twitter.py
+++ b/src/twitter.py
@@ -14,7 +14,7 @@ from .twi_parser import parse_timeline
 
 LATEST_TWEET_ID_DICT = {}
 LATEST_TWEET_TS_DICT = {}
-def check_new_tweets(tweets, list_id):
+def check_new_tweets(tweets, list_id, check_interval=600):
     if not tweets: return []
     new_tweets = []
     
@@ -22,7 +22,7 @@ def check_new_tweets(tweets, list_id):
         for tweet in tweets:
             if tweet["rest_id"] == LATEST_TWEET_ID_DICT[list_id]: break
             if tweet["timestamp"] <= LATEST_TWEET_TS_DICT[list_id]: break
-            # if time.time() - tweet["timestamp"] > 1200: break
+            if time.time() - tweet["timestamp"] > check_interval * 3: break
             new_tweets.append(tweet)
     
     LATEST_TWEET_ID_DICT[list_id] = tweets[0]["rest_id"]
@@ -51,7 +51,7 @@ async def task_handler(args):
     data = await get_list(list_id)
     if data:
         tweets = parse_timeline(data)
-        new_tweets = check_new_tweets(tweets, list_id)
+        new_tweets = check_new_tweets(tweets, list_id, config.get("check_interval", 600))
         new_tweets = filter_tweets(new_tweets, args["filter"])
         if new_tweets:
             json_data = { args["qq"]: new_tweets }