The class hours in Japanese universities are about 9 am to 8: 30 pm. I only attended the penultimate section. The class time is determined by the subject you choose. One class 1.5 hours, more choices, longer class time.

Working hours are also determined by individuals. I don't know whether you are talking about working in school or working in society. National exchange students who are studying for a doctorate and become monks can work in schools. Find someone outside yourself.

When I was a freshman and a sophomore, I took many classes, stayed up all night and went home at 6: 00 in the morning in order to learn more. Sometimes I can only sleep for 2 hours in the first class, of course, I have to mediate the time myself. Sometimes I stay up 60 hours for school assignments and part-time jobs.