I had the same issue when I finished college and went on for more schooling. Stopped training for about 4 years due to studying and the carreer (blah, blah, excuses, excuses). Now with work, put in long hours and had a need to get myself back in the gym. So what did I do? I wake up at 5AM and get my ass in the gym by 5:30 AM (gym is 2 blocks away). Woek out till about 7 and then go back home to get ready for work.
I start work at about 9 and usually get home around 7:30-8. By the time I get home I do not want to do anything except talk to the wife, watch TV and eat. I am fortunate because I'm an early riser and can wake up this early.
So, as others have said, if you want it, you will find time for it.