One of the jobs I had was 9am to 5pm for about a year. For me, that was practically heaven because prior to that it had been 9am to 6pm for a few years, and the shorter hours didn't come with a pay cut.

It got weird later because I took on a rotating shift pattern and more responsibility, but some of the day shifts were still 9 till 5.

Then I jumped ship to a different company that had 9am to 6pm again, but that turned out to be preferable to the hell of not being able to sleep properly.