One of my favorite series of posts on RYS concerned the amount of hours faculty work, and appeared in August and September of 2007.
It started with a Biology proffie from a community college who tracked his hours over the course of a school year and figured he was in the 2800 hour range. (52 weeks at 40 hours, would of course be 2080 hours.)
That was followed by someone who was called "Mr. Bullshit," who himself called "bullshit" on the Biology prof. Mr. Bullshit figured his work for the year at more like 400 hours, a remarkably different number.
They then published 8 replies that came in from other RYS folks, some of whom who called "bullshit" on Mr. Bullshit, but some who expressed that perhaps the lower number wasn't as insane as it first appeared.
Mr. Bullshit then weighed in once more, fessing up that he hadn't spent much time figuring in research and grading. Even then his schedule sounded light to me.
I know faculty jobs vary widely, and it's not just rank and discipline, but a variety of other forces, that keep us "at work" for longer or shorter periods of time. But I'd love to know how much you work.