Date To Unix Time was invalid

Hello,
First, I get the current time in unix time format, which I then convert to a date. I want to convert this last one back to unix time but it gives me an error because I don’t know what to put in format.

TIME

Hello @HITALL
put this : yyyy-MM-dd:HH-mm-ss
Capture

Thank you very much. I put something similar before and it gave an error but putting what you have told me works correctly.