when you configure calendar like this
showsTime : true,
daFormat : "%d/%m/%Y %H:%M"
if you select the 8 oct 2007 at 12h23 the display is OK ; when you click one more time to edit date/time, hour is null and minute is hour ??
date / time selected by default when editing is 8 oct 2007 at 23h00
bug or not ?