Hi, Every day i learn a little more about the form API stuff and every day I run into undocumented (or rather, unfindable) issues: Today: when I define a fapi form element of type date, do I still need to bother about validating these dates? And do I need to bother about converting the #default_value into a nice date string? Esp. when this is defined in a node form? Lets assume I have date_start and date_end set, now $node->date_start will be filled with a string, on _insert and _update my module converts those to a timestamp. on _load my modules pulls out the timestamp. Now, when I call this in the _form, I would assume that the #default value gets set with the proper string, convderted from the timestamp. I fail to find how this exaqctly works: I can find near to nothing about #post process or so. Ber