I may be more of a dilettante than others, and I'm far too lazy to get too far into the math, but let me give you my hours for the past school year, a year where I taught my normal load of 3/3, all sections of courses I've taught before. My schedule semester to semester is identical.
- Sunday: Zero.
- Monday: 1 office hour, where I occasionally see a student, and do copying and so forth for my Tuesday classes.
- Tuesday: 1 office hour, 160 minutes in class, maybe 30 more after class is over to finish up anything.
- Wednesday: 1 office hour before night class to prepare. 150 minutes in class.
- Thursday: Same as Tuesday, total of 250 minutes.
- Friday: On average, every second Friday I have at least one committee meeting. So, let's say 30 minutes for an average Friday.
- Saturday: Zero.
And I will still bet my life that the average prof is closer to my 400 hours than to the earlier writer's 2800. Unless you're just bullshitting yourself.
Oh, and to finish the math portion of this, I make $48,750, or about $120 an hour. That's a lot less than my CPA makes, but more than my lawn guy. So, I don't know if that tells you anything about my position in the pecking order of things.