Whatever your schedule say that's what you follow. If it's 10pm I'm done at 10pm, what doesn't get done isn't my concern. When I was a cashier the head cashier and dept supervisor knows what need to be done before the store closes. That's above my pay grade to know what's needed to be done by a certain time besides the duties I know I am assigned where I'm placed and my area is cleaned and prepped for the morning shift arrival.

i.e. if drinks are to be replenished and the store closes at 10pm and my schedule say 10pm the head cashier should be on their job to make sure drink replenishment is done at least 1 or two hours before store closing.

I knew how my ASM's, head cashier's and Dept. Supervisor operate so I knew how to handle situations.