Well, today the time I am spending in front my desk would be way too much, approx. more than 12 hours.
But on the other hand this has decreased a lot over the past year. When I was "younger", like from 17 - 23 I did that constantly, like 5 or 6 days a week.
Of course this was not sustainable and the crash always waited around the corner. Now I am "older" and "wiser". Ok, that's really it for the day.