Here is my solution for future humans
Use the action WWWPOST or WWWPOST Mobile if on mobile. Have the url point to here:http://www.timeapi.org/utc/now
This will get you the UTC or Universal Time Clock. You then need to use Get Substring to get the month, day, year, etc into individual strings. Use Build String to recombine the date time into UNIX time which Playmaker actions use
Hope this helps!