Pass UTC timestamp to another form or payment manager?

I'm passing data from a JotForm to another form (similar to process described here, but using a payment manager rather than another JotForm: https://www.jotform.com/help/351-How-to-Automatically-Pass-Form-Data-to-Another-Form). A key piece of information that must be passed to my second form is the UTC timestamp of the submission. What unique field name do I use to gather this information? "Date", I assume, is not the same as the universal UTC timestamp. Thanks!

Thank you for contacting us.

If you need a Unix Time Stamp value, you may use a {DATE:U} tag. It should be also possible to get the submission timestamp in the different formats, for example, RFC 2822 formatted date - {DATE:r}.

Please follow the next guide for more information:

Add a Date on Email Notification