How much hours can you endure to work in front of the computer screen? I've been known to do a few 20 hours straight sessions with only 5-6 hours of sleep in between. It's extremely tiring though.

I'm not that dedicated - normally 8:30AM to 5:30PM. Of course I have a couple of other businesses that demand my time - some of that also in front of a computer.

Normally I'm 9am - 5pm work wise however I have been known to span 48hour periods in front of a desktop with very large and subsequently high risk or importance systems outside of the area of hosting.

That said from a legal standpoint and from experience in the UK work wise, a 10 min break per hour is a legal requirement for employers.

Well.. I must say I'm using my PC maybe.. 5-6 hours per day + my phone to check support tickets.

How many hours have I worked infront of a screen? Too many. Daily I run about 12 hours, many times more than that. As for consistant time in front of a computer, a few days with a few power naps. I did have a stint many years ago (about 14) where I work for 23 days in front of a computer with 2 hours break/nap, along with regular stretching etc. I don't advise it, but when you have a huge project on your hands and you're the guy pulling all the strings to make the puppet jump, you have no choice. Many millions of dollars on the line, with a ton of penalties if the project was delayed. Of course, there was massive bonuses when we delivered before the deadline

It can be done - as long as the reward is worth it in the end.

I spend about 12 hours a day on the PC. Back before I had kids, I spent 18 - 20 hours a day on the PC. I once worked for a big reseller company in the UK and my weekend shifts were 15 hours.

I spend too many in my own opinion. Probably average 10 hours a day lately.

Yeah, about 10 hours/day for me. That's 9-5 at work and the rest at home on my own projects. I worry about my eyes!

12 hours at least

~8-9 hours a day m-f, weekend, max 1 hour. Gotta have balance...oh..and the wife & kids dictate that as well.

I can only endure 5-6 hours of work in front of a computer. Of course, with Facebook break every 30 minutes.

I'm actually infront around 12-16 hours a day

I spend 3 or 5 hours...

10+ hours daily.
Course I basically work at home.

12+ hours a day