I work from 8 till around 6 each day and I have a wife and child at home. Disappearing for an hour and a half each day is impossible unless I do it at 5am which then means I need to be in bed quite early to avoid being knackered. I don't see how else I could manage to do it, if I went to the gym for 3hrs my wife would not be a happy lady. An hour is about the limit on a weekday but tha depends when I get home from work (like today I'm home now so I'm about to head out for a run).