Fix datetime instead of timezone

tournaments/models/tournament.py

@@ -537,7 +537,7 @@ class Tournament(models.Model):
             return True
         if self.publish_teams:
             return True
-        if datetime.now().date() >= self.start_date.date():
+        if timezone.now().date() >= self.start_date.date():
             return True
         return False
 
@@ -546,7 +546,7 @@ class Tournament(models.Model):
             return False
         if self.publish_summons:
             return True
-        if datetime.now() >= self.start_date:
+        if timezone.now() >= self.start_date:
             return True
         return False
 
@@ -560,9 +560,9 @@ class Tournament(models.Model):
 
         first_group_stage_start_date = self.group_stage_start_date()
         if first_group_stage_start_date is None:
-            return datetime.now() >= self.start_date
+            return timezone.now() >= self.start_date
         else:
-            return datetime.now() >= first_group_stage_start_date
+            return timezone.now() >= first_group_stage_start_date
 
         # group_stage_start_date = self.getEightAm(first_group_stage_start_date)