Override switch for time clock

[infinity]

May of been mentioned, I'd use a spring wound timer switch .. say 6-12 hours that way when barney forgets the override switch it will
magically turn off .. until the timer re-energizes the system once again.

Yes, a few others have mentioned that also and it will work. I was just trying to point out the that aforementioned single pole switch would pretty much defeat the automatic function of the system.