diff --git a/src/agenda_culturel/models.py b/src/agenda_culturel/models.py
index 0f498e9..279258f 100644
--- a/src/agenda_culturel/models.py
+++ b/src/agenda_culturel/models.py
@@ -1385,11 +1385,13 @@ class Event(models.Model):
         self.current_date = date
 
     def get_start_end_datetimes(self, day):
+        start_h = time().min
         if self.start_day == day:
             if self.start_time is None:
                 dtstart = datetime.combine(self.start_day, time().min)
             else:
                 dtstart = datetime.combine(self.start_day, self.start_time)
+                start_h = self.start_time
         else:
             dtstart = datetime.combine(day, time().min)
 
@@ -1397,7 +1399,10 @@ class Event(models.Model):
 
         if end_day == day:
             if self.end_time is None:
-                dtend = datetime.combine(end_day, time().max)
+                if end_day == self.start_day:
+                    dtend = dtstart + timedelta(hours=2)
+                else:
+                    dtend = datetime.combine(end_day, time().max)
             else:
                 dtend = datetime.combine(end_day, self.end_time)
         else: