diff --git a/program/models.py b/program/models.py
index f0327cfce37ff344d286eb077b5d93340e8223d2..2d06133b71f767245c08d6a20a53b382e7fda5ab 100644
--- a/program/models.py
+++ b/program/models.py
@@ -964,14 +964,14 @@ class TimeSlotManager(models.Manager):
 
     @staticmethod
     def get_24h_timeslots(start):
-        end = timezone.make_aware(start + timedelta(hours=24))
+        end = start + timedelta(hours=24)
 
         return TimeSlot.objects.filter(Q(start__lte=start, end__gte=start) |
                                        Q(start__gt=start, start__lt=end)).exclude(end=start)
 
     @staticmethod
     def get_7d_timeslots(start):
-        start = timezone.make_aware(datetime.combine(start, time(0, 0)))
+        start = datetime.combine(start, time(0, 0))
         end = start + timedelta(days=7)
 
         return TimeSlot.objects.filter(Q(start__lte=start, end__gte=start) |