Do Universities no longer do that? All of my finals were 3hrs. There was a special schedule during finals week with 3 slots per day. The time of your final exam was based on when the first lecture session of a class took place. Really sucked to get an 8-11 AM slot when your classes never started before 11.

Fun prank: set all of the clocks in your dorm neighbor’s room to different wrong times. Guy across the hall knew we were messing with him, trusted his watch - which had the correct time, but wrong alarm time. Realized he had a problem when he had hot water in the shower and no one was around. He was only 45 min late to the exam. Good times.