How do I specify drop off and pick up times when boarding a dog?

I recently sat (2) dogs in my home. They were dropped off at 9:00 am and picked up the next day at 12:00 pm. I think this was more than overnight care, but don't know know to show this with my services and rates. How do I for example, state that drop off time is after 3:00 pm and pick up is by noon the following day. If not picked up by noon an additional day's rate applies.