CoRE - Get peer assistance here with setting up Pistons

I’ve spent an embarrassing amount of time trying to do something that I’m sure is simple for most of you.
I’ve started over with different piston types but it always fails for some reason or another.
I want to turn on a lamp when the contact is open for more than a minute.
Once the one minute time has elapsed, I want to turn the light off.

This latching piston turns off the light any time the contact is closed, which is not want I want.