Countdown timer

Hi everybody, could someone tell me why this timer stops at 1 second
thanks

image

sorry I don't understand. if I remove this or change the logic timer won't stop at all.

What he is trying to tell to you is,

When a button is clicked both clock triggers but when clock 1 triggered immediately both clock stopped working.

What is the time interval you set for clock 1 and 2?

Capture d'écran 2025-12-15 222108
Now it works
Thank you for your help