diff --git a/twitchio/ext/routines/__init__.py b/twitchio/ext/routines/__init__.py
index d8068946..7354582d 100644
--- a/twitchio/ext/routines/__init__.py
+++ b/twitchio/ext/routines/__init__.py
@@ -332,8 +332,9 @@ def next_execution_time(self) -> datetime.timedelta | None:
 
         if self.next_event_time is None:
             return None
-
-        return max(self.next_event_time - datetime.datetime.now(datetime.timezone.utc), datetime.timedelta(seconds=0))
+        
+        return max(self.next_event_time - datetime.datetime.now(self.next_event_time.tzinfo), datetime.timedelta(seconds=0))
+        
 
     @property
     def start_time(self) -> Optional[datetime.datetime]:
@@ -369,7 +370,7 @@ async def _routine(self, *args, **kwargs) -> None:
             self.next_event_time = self._time
             wait = compute_timedelta(self._time)
             await asyncio.sleep(wait)
-
+            
         if self._wait_first and not self._time:
             self.next_event_time = self._delta + datetime.datetime.now(datetime.timezone.utc)
             await asyncio.sleep(self._delta)