Question about the practical exam day

Hey guys, I know this might sound a little bit offending to some. But id like to ask the question on last day schedule it says its from 8am to 4pm. Will this take the full day as stated? Or is it do the practical test and leave. possibly early once you finish. I have an appointment to take my grandma to the hospital by 1pm. was checking if i need to have somebody to take her instead