diff --git a/backend/employees/services/birthday_events.py b/backend/employees/services/birthday_events.py
index d5097586..ee00a7c4 100644
--- a/backend/employees/services/birthday_events.py
+++ b/backend/employees/services/birthday_events.py
@@ -84,7 +84,7 @@ class UpsertBirthdayEventService(Service):
             hour=0,
             minute=0
         )
-        end_date = start_date + timedelta(hours=23, minutes=59, seconds=59)
+        end_date = start_date + timedelta(hours=23, minutes=59)
         
         # Делаем aware если USE_TZ=True
         if timezone.is_naive(start_date):