Im using a JQuery DatePicker in a Zend Framework based application Form. Here is the code for the date picker
$this->addElement(\'datePicker\',\'movie_release
Try adding this to your array:
'dateFormat' => 'yy-mm-dd',
If you're still having trouble, see if you can upgrade to the most recent version of the control from jQuery UI's site. Here is usage documentation for date formats: http://jqueryui.com/demos/datepicker/#date-formats