diff --git a/mycaldav/models.py b/mycaldav/models.py
index a4c153e..c98b385 100644
--- a/mycaldav/models.py
+++ b/mycaldav/models.py
@@ -26,7 +26,9 @@ Key_separator = "--"
 
 class caldav_sync_manager(models.Model):    
     dtDate = models.DateField('Date_synchronized', auto_now_add=True, unique=True)
-    bDone = models.BooleanField("Effectuée", default=False)    
+    bDone = models.BooleanField("Effectuée", default=False)
+    dtUpdated = models.DateTimeField('date updated', auto_now=True)
+    dtCreated = models.DateTimeField('date published', auto_now_add=True)    
 
     def __str__(self):
        return f"{self.dtDate}"