set the office open and closing times on the app
There should be a way to set the open and closed times of the office for the day and have the appointment book display only those times on the screen instead of starting at 6 am and going to 10 pm. Manually blocking out the times when you are not open does not prevent PV from displaying them as if they are part of the regular day and it is a very inefficient way to do it. See Dentrix as an example.