Funny timetable

For the 1st time in my NIE life, I have an official off day. However, there is this dumb science lecture that starts at 1730hrs on Fridays! Why can't it be pushed a little earlier or better still, rescheduled to another day? As for the 5 hour break, I am numb to that so I will just use that time to do my research, assignments, go for a run and have a good sweating session and top it off with a dip in the pool....