diff --git a/src/plugins/schedule/schedule_generator.py b/src/plugins/schedule/schedule_generator.py
index 24b2a32dd..fb1648abf 100644
--- a/src/plugins/schedule/schedule_generator.py
+++ b/src/plugins/schedule/schedule_generator.py
@@ -128,6 +128,10 @@ class ScheduleGenerator:
     
     def _time_diff(self, time1: str, time2: str) -> int:
         """计算两个时间字符串之间的分钟差"""
+        if time1=="24:00":
+            time1="23:59"
+        if time2=="24:00":
+            time2="23:59"
         t1 = datetime.datetime.strptime(time1, "%H:%M")
         t2 = datetime.datetime.strptime(time2, "%H:%M")
         diff = int((t2 - t1).total_seconds() / 60)
@@ -165,4 +169,4 @@ class ScheduleGenerator:
 # if __name__ == "__main__":
 #     main() 
     
-bot_schedule = ScheduleGenerator()
\ No newline at end of file
+bot_schedule = ScheduleGenerator()