Serious How much time on your PC per day

The longest pleasure at the computer was on a 3-day lan party with around 65 hours of continuous play Unreal Tournament. I'm not playing another minute today. I work most of the time.
I sit daily from Mon-Fri from 7:30 am to 12 pm in front of the computer (16,5 hours) for exactly 20 years. Weekends vary a lot. Sometimes only a few hours, because I am on the road and do sports.