That's a given. But if he's given the -option- to switch schedules, this is a very valid question.

I worked a similiar shift for 6 years. It really wore on me by the end and I was happy to move on to a more convential shift. I think if you can score a 11-8 schedule, that could work nicely. #1, the commute time might be a bit shorter due to off-peak times. #2, you can get a nice 2-3 hour ride in before work and still have the weekend for longer rides.