I just don't seem to have time. I spend 4 hours commuting by train every so it's really a choice between sleep and working out most days. I used to get up early to work out but it just became too much.
Why do you spend that long commuting? Are there no closer/remote jobs, or can you not move closer?
It's not uncommon for a commute to take two hours (certainly around London) especially if there are changes between trains / metros involved. Although a good friend of mine had a mental breakdown which I think was brought on partially by that length of commute.