You could get up and go to the toilet any time you wanted, but they did not stop the clock for you.
The actual test time was 8 hours. I was at the building for 12 hours. You had to factor in waiting in line to get in the building, checking in, waiting for the other 1000 people to check in, listening to the test proctor read the instructions (very slowly), lunch time, waiting to get back into the building after lunch, checking in again, waiting for everyone else to check in, listening to the test proctor read the instructions again (very slowly). The freaking thing took forever. But I don't have to do that again.
H-here, b-bunny, bunny, bunny...