diff --git a/mycaldav/views.py b/mycaldav/views.py
index 7f912e3..3be1aa4 100644
--- a/mycaldav/views.py
+++ b/mycaldav/views.py
@@ -147,9 +147,9 @@ def view_op_caldav(request):
         temp_item.desc = item.sDesc
         temp_item.key = item.sKey
         temp_item.done = item.bDone
-        temp_item.str_start_date = str(item.dtStart.day) + "." + str(item.dtStart.month)
+        temp_item.str_start_date = str(item.dtStart.strftime('%d')) + "." + str(item.dtStart.strftime('%m'))
         if item.dtEnd != None:
-            temp_item.str_end_date = str(item.dtEnd.day) + "." + str(item.dtEnd.month)
+            temp_item.str_end_date = str(item.dtEnd.strftime('%d')) + "." + str(item.dtEnd.strftime('%m'))
         else:
             temp_item.str_end_date = None
         all_items.append(temp_item)