remove pytz

conf/views.py

@@ -7,7 +7,6 @@ import smtplib
 import time
 from datetime import datetime
 
-import pytz
 import requests
 from django.conf import settings
 from django.utils import timezone
@@ -226,7 +225,7 @@ class DashboardInfoAPI(APIView):
     def get(self, request):
         today = datetime.today()
         today_submission_count = Submission.objects.filter(
-            create_time__gte=datetime(today.year, today.month, today.day, 0, 0, tzinfo=pytz.UTC)).count()
+            create_time__gte=datetime(today.year, today.month, today.day, 0, 0)).count()
         recent_contest_count = Contest.objects.exclude(end_time__lt=timezone.now()).count()
         judge_server_count = len(list(filter(lambda x: x.status == "normal", JudgeServer.objects.all())))
         return self.success({