I don’t know anyone that has it that strict.

On shift work it is standard to get 6:00 - 14:00, 14:00 - 22:00 and 22:00 - 6:00. And most people I know that have office work usually have some flexible arrangement like you have to work 8h and have to be here for meetings 9:00 - 13:00, so some people arrive at 9 and leave at 5 or you can arrive at 6 and leave at 2…

Other jobs like teachers, doctors… have just completely different schedules each day.