diff --git a/routes/boss.py b/routes/boss.py
index d6ab70e..c6973c6 100644
--- a/routes/boss.py
+++ b/routes/boss.py
@@ -38,17 +38,9 @@ async def boss_rotation(request: Request):
         with open("boss.yaml", "r") as f:
             yaml_data = yaml.safe_load(f)
         
-
-        #temporary spfn patch lols
-        date_str = yaml_data.get("DateTime")
-        if not date_str:
-             date_str = "2023-10-30T07:00:00+09:00"
-        
-        if isinstance(date_str, datetime):
-            current_time = date_str
-        else:
-            date_str = date_str.replace('Z', '+00:00')
-            current_time = datetime.fromisoformat(date_str)
+        base_time_str = yaml_data.get("ByamlInfo", {}).get("BaseByamlStartTime", "2026-02-06T06:00:00.0000000Z")
+        base_time_str = base_time_str.replace('Z', '+00:00')
+        current_time = datetime.fromisoformat(base_time_str)
 
         rotations = {}