diff --git a/dist/ba_root/mods/setting.py b/dist/ba_root/mods/setting.py
index f5d6071..a87dd2a 100644
--- a/dist/ba_root/mods/setting.py
+++ b/dist/ba_root/mods/setting.py
@@ -7,7 +7,7 @@ from __future__ import annotations
 
 from typing import TYPE_CHECKING
 from functools import lru_cache
-
+import datetime
 import json
 import _ba
 
@@ -43,7 +43,18 @@ def commit(data: dict) -> None:
     data : dict
             data to be commited
     """
+    if is_invalid_time_format(data['autoNightMode']['startTime']) or is_invalid_time_format(data['autoNightMode']['endTime']):
+        data['autoNightMode']['startTime'] = "18:30"
+        data['autoNightMode']['endTime'] = "6:30"
+        print("resetting night mode time")
     with open(SETTINGS_PATH, mode="w", encoding="utf-8") as setting_file:
         json.dump(data, setting_file, indent=4)
     # settings updated ok now update the cache
     refresh_cache()
+
+def is_invalid_time_format(time_string, time_format='%H:%M'):
+    try:
+        datetime.datetime.strptime(time_string, time_format)
+        return False
+    except ValueError:
+        return True
\ No newline at end of file