I stand hunt until 11:00, still hunt from 11-12, eat, then still hunt from 1:00 to 2:30-3:00 depending on what I see and the conditions and then pop a squat wherever I am until dark. It has worked well for me.
I notice the most movement at my PA hunting spot from 10:30-11:30 so I usually don't leave my stand until 12:30 or 1:00 when I hunt PA.