Countdown timer with potentiometer

Did you look at the schematic in post #46 ?

Apparently you want a turn key solution and will just put the minimum effort into studying what others have done for you.

Multiple solutions have been presented.

When you make changes to a sketch, then say the changes don’t work, do you think your modified work should be presented to us ?

It is past the time for you to put more effort into this project.

Thanks for your efforts guys , I have finally figured it out. I was actually looking in the wrong direction, I want to thank especially @LarryD and @paulpaulson for their support. I am not yet an expert in Arduino coding but I have gained little experience from their lines of code and will try to improve on them .