Multiple Date Formats
This technique is particularly useful if you wish to show a locale oriented display to the user, but your backend has specific, multiple, date format requirements. (CakePHP for instance).
If you simply need a single extra format in something like a hidden input element, please read the api pages for “linkedField” and “linkedFieldFormat”
The output of the demo here is show in “text” inputs, but it could just as easily be “hidden” inputs.