When I worked a hundred years ago, start time was 9. Alarm set @820, shower, eat, brown up, drive 10 minutes, clock in 859.
I remember guys being there like an hour, hour half before start time, drinking coffee, smoking cigs. I never did understand that mentality. I enjoyed the challenge of being there @859. I wanted to retire with the least amount of time at that building. I won.
(My first kid, his first two words he put together was, Heeeeeeeeere's Johnny!)