The ability to set cut off time for the day

A very important feature for us is the ability to set a cut-off time to receive bookings. We are in the restaurant business and have set our availability from 11:00 AM to 8:15 PM. However, we would like to stop taking bookings for the whole day at 4:00 PM because our venues struggle to keep track of bookings during the busy dinner service. Please see the attached screenshot for reference.