3 hours a day commuting multi-modal or just by vehicle is alot because of the mileage covered. But it doesn't seem that bad when its all by bicycle. I used to have a 1 hour bicycle commute each way then I started a new job 4 months ago and now its 3 hours on the bike per day total. You have to be willing to devote that time. The winter weather and snow is making it harder though and my times have crept up lately.