diff --git a/dav_events/forms/events.py b/dav_events/forms/events.py
index 80e5262..2c0c6b7 100644
--- a/dav_events/forms/events.py
+++ b/dav_events/forms/events.py
@@ -387,6 +387,7 @@ class ApproachForm(EventCreateForm):
     def _proceed_session_data(self, session_data):
         super(ApproachForm, self)._proceed_session_data(session_data)
 
+        first_day = session_data.get('first_day', None)
         last_day = session_data.get('last_day', None)
 
         self.fields['transport_other'].widget.attrs['placeholder'] = _(u'Nebenstehendes Feld beachten')
@@ -395,6 +396,13 @@ class ApproachForm(EventCreateForm):
         self.fields['accommodation_other'].widget.attrs['placeholder'] = _(u'Nebenstehendes Feld beachten')
         self.fields['meals_other'].widget.attrs['placeholder'] = _(u'Nebenstehendes Feld beachten')
 
+        self.fields['meeting_time'].widget.options['startDate'] = first_day.strftime('%Y-%m-%d 00:00:00')
+        self.fields['meeting_time'].widget.options['endDate'] = first_day.strftime('%Y-%m-%d 23:59:59')
+
+        return_day = last_day or first_day
+        self.fields['return_time'].widget.options['startDate'] = return_day.strftime('%Y-%m-%d 00:00:00')
+        self.fields['return_time'].widget.options['endDate'] = return_day.strftime('%Y-%m-%d 23:59:59')
+
         if not last_day:
             self.fields['basecamp'].widget = forms.HiddenInput()
             self.fields['accommodation'].widget = forms.HiddenInput()