* last second cleanup

tests/apiv2/test_donations.py

@@ -1,5 +1,6 @@
 import random
 from datetime import datetime, timedelta
+from typing import Optional
 
 from django.contrib.admin.models import CHANGE
 from django.contrib.auth.models import Permission, User
@@ -30,7 +31,7 @@ def generate_donations(
         count=1,
         state: str,
         transactionstate='COMPLETED',
-        time: datetime = None,
+        time: Optional[datetime] = None,
     ):
         commentstate = 'PENDING'
         readstate = 'PENDING'

tests/randgen.py

@@ -647,9 +647,7 @@ def build_random_event(
 
     event = generate_event(rand, start_time=start_time)
     if not start_time:
-        start_time = datetime.datetime.combine(event.date, datetime.time()).replace(
-            tzinfo=datetime.timezone.utc
-        )
+        start_time = datetime.datetime.combine(event.date, utcnow().timetz())
     event.save()
 
     list_of_runs = generate_runs(rand, event=event, num_runs=num_runs, scheduled=True)

tracker/models/event.py

@@ -20,13 +20,6 @@
 from .fields import TimestampField
 from .util import LatestEvent
 
-# TODO: remove when 3.9 is oldest supported version
-
-try:
-    import zoneinfo
-except ImportError:
-    from backports import zoneinfo
-
 # TODO: remove when 3.10 is oldest supported version
 
 try:
@@ -49,7 +42,6 @@ def pairwise(iterable):
     'Headset',
 ]
 
-_timezoneChoices = [(x, x) for x in zoneinfo.available_timezones()]
 _currencyChoices = (('USD', 'US Dollars'), ('CAD', 'Canadian Dollars'))
 
 
@@ -401,7 +393,7 @@ def upcoming(
         elif isinstance(now, str):
             now = datetime.datetime.fromisoformat(now)
         elif isinstance(now, datetime.datetime):
-            now = now.astimezone(datetime.timezone.utc)
+            pass  # no adjustment necessary
         else:
             raise ValueError(f'Expected None, str, or datetime, got {type(now)}')
         if include_current:

tracker/models/prize.py

@@ -423,9 +423,9 @@ def start_draw_time(self):
                 return self.prev_run.endtime - datetime.timedelta(
                     milliseconds=self.prev_run.setup_time_ms
                 )
-            return self.startrun.starttime.replace(tzinfo=datetime.timezone.utc)
+            return self.startrun.start_time_utc
         elif self.starttime:
-            return self.starttime.replace(tzinfo=datetime.timezone.utc)
+            return self.start_time_utc
         else:
             return None