service is for all day or for hours?

All day, as long as you are there. But you cannot leave and come back - no re-entry.

All day

After 2 am there is an additional charge on the weekends.

You pay to spend the whole day there, and then you can add extra services that are for certain increments of time during your day.

Bring a book or tablet and a refillable bottle for water. Most people spend 5 to 8 hours there.