From Denmark, and that was what shook me as well! Seems like INSANELY much.

We don't know if the data collected is from the total hours of "on-time" of the computer. This would mean that procrastination could be taking up the majority of the spare time. I'm on my computer around 10-12 hours a day studying, working, blogging and just browsing the Internet and would not be surprised if I spend around 286 hours a month at the keyboard. But it's not work all of it.

EDIT: On the frontpage he writes "By day I’m an engineer at Wave. (Also frequently by night because I really like my work.)"