Hi I would like to set a property with type 'date' from an External Method. Because the properties all seem to be saved as a string, in Python I do: self.prop_datetime = time.strftime('%Y/%m/%d %H:%M:%S.000 GMT+1',time.localtime(time.time())) This results in a optically (!) correct value like: 2000/09/16 17:49:02.000 GMT+1 However, when I call a document which uses the date, as with: <dtml-with prop_datetime> <dtml-var "'%s %s om %s' % (dd(), aMonth(), TimeMinutes())"> </dtml-with> Zope produces an error: Zope has encountered an error while publishing this resource. Error Type: NameError Error Value: dd The funny thing is, when I manage the properties and just do a 'save changes', the error is gone and the date is displayed correctly ... It seems to me that the date property is not saved as a string after all ? But what then ? I tried self.prop_datetime = time.localtime(time.time()) and self.prop_datetime = time.time(); both result in a string representing their value but none of them results in a date/time value .... Gijs Reulen