Editing a Date field in Appengine Data Store Viewer

Does anyone know how edit a field with type 'Date' in the appengine开发者_C百科 data store viewer in production? It seems like it maps to an int field and I tried putting in the number of milliseconds since epoch but that didnt work.

If a value is existing and you try to change it (like in your case), it shouldn't be a problem. The Date is internally stored as Python datetime.datetime object