diff --git a/rog/services/csv_processor.py b/rog/services/csv_processor.py
index f23c6c8..4c5707a 100644
--- a/rog/services/csv_processor.py
+++ b/rog/services/csv_processor.py
@@ -245,10 +245,14 @@ class EntryCSVProcessor:
                 raise ValidationError(f"Event {event.event_name} has no start date")
             
             # 日付が必要な場合のフォールバック
-            entry_date = row.get('entry_date')
+            entry_date = self.date_converter.convert_date(row['entry_date'])
             if entry_date:
-                entry_date = self.date_converter.convert_date(entry_date)
-            print(f'エントリー日付：{entry_date}')
+                from django.utils import timezone
+                entry_date = timezone.make_aware(
+                    datetime.combine(entry_date, datetime.min.time())
+                )
+            else:
+                entry_date = event.start_datetime
 
             entry = Entry.objects.create(
                 team=team,