I did 2 - 2.5 hours of exercise for a brief time (around a year), years ago. You can't do it if you have children, but otherwise it can be done. I started work at 7:00 and left at 15:00. Adding transportation I'd normally be home around 18:15 in the evening. I think the key is to not have other obligations (at least not to many) and a minimum of transportation time.
My daughter is adult and being on my own since 2000 relieved me from wasting time on commute except occasional visit to client. The only obligation I have is to my wife and often we ride, hike etc together or with friends.
