Thanks for that Craig. I will take a look.
What I am trying to do is do a date time stamp equivalent where I have 2 seperate registrations. The user registration has hidden field ala <?php echo(date("Y-m-d h:m:s")); ?> but I am wanting the admin to change the date by using an altered datepicker to be able to adjust the date and have h:m:s at the time the admin used the date picker so that the format of date time is the same