Daycare/boarding; extended stay rate

Apologies if this is a dumb question, but if someone wants to book me from Tuesday afternoon until Thursday night; is it 3 daycare days & 2 boarding nights to get the total? At first I was thinking just the 2 overnights ($40/night) but realized I'm probably short changing myself.

I know when it gets booked the app will tell me the total, I am just trying to mentally prep myself ahead of time lol.