“The 9[am] to 5[pm]” is a common term for one’s regular job, on the basis that normal people start work at 09:00 and finish at 17:00. I’ve worked a few jobs and closest I’ve ever gotten to this is 08:00 to 17:00, which I gather is standard.
Are there real jobs where people actually start at 9 and finish at 5?
When I started my current job it was a proper 9-5 with a half hour paid lunch.
They’ve now switched us to an hour unpaid lunch, but everyone basically just ignores it.
And in both cases many of those hours are downtime.