Use UTC for recordings (#4656)

* Write files in UTC and update folder structure to not conflict

* Add timezone arg for events summary

* Fixes for timezone in calls

* Use timezone for recording and recordings summary endpoints

* Fix sqlite parsing

* Fix sqlite parsing

* Fix recordings summary with timezone

* Fix

* Formatting

* Add pytz

* Fix default timezone

* Add note about times being displayed in localtime

* Improve timezone wording and show actual timezone

* Add alternate endpoint to cover existing usecase to avoid breaking change

* Formatting

frigate/record.py

@@ -261,8 +261,8 @@ class RecordingMaintainer(threading.Thread):
     def store_segment(
         self,
         camera,
-        start_time,
-        end_time,
+        start_time: datetime.datetime,
+        end_time: datetime.datetime,
         duration,
         cache_path,
         store_mode: RetainModeEnum,
@@ -277,12 +277,20 @@ class RecordingMaintainer(threading.Thread):
             self.end_time_cache.pop(cache_path, None)
             return
 
-        directory = os.path.join(RECORD_DIR, start_time.strftime("%Y-%m/%d/%H"), camera)
+        directory = os.path.join(
+            RECORD_DIR,
+            start_time.replace(tzinfo=datetime.timezone.utc)
+            .astimezone(tz=None)
+            .strftime("%Y-%m-%d/%H"),
+            camera,
+        )
 
         if not os.path.exists(directory):
             os.makedirs(directory)
 
-        file_name = f"{start_time.strftime('%M.%S.mp4')}"
+        file_name = (
+            f"{start_time.replace(tzinfo=datetime.timezone.utc).strftime('%M.%S.mp4')}"
+        )
         file_path = os.path.join(directory, file_name)
 
         try: