I have been keeping track of my hours this year.
Not just the hours I am supposed to be on the clock and in the classroom, though of course those are included.
The hours I spend grading, planning, and at professional development opportunities are also included.
The hours I spend answering student e-mails, working on education-related side projects, reading and writing educational blogs and listservs, and generally researching my profession are not included.
Which means that I am only including hours that directly affect my practices inside my classroom on a day-to-day basis. The hours I put in to succeed as a teacher. The necessary hours. The required hours.
I have been doing this for exactly six months now. It's a good time to check in.
I have been using a pretty simple system. I record my activities (generalized) on an Excel spreadsheet. I record my start and stop times, then calculate the hours those times included. At the end of each month, I use the amazing "sum" ability from Excel to calculate how many hours I have worked in total.
To calculate the hours an "Average Worker" would be putting in--and by that I mean an average salaried worker, not someone who makes money when he or she works overtime--I total the days in the month during which a salaried worker would be expected to work (i.e. no holidays) and multiply that number by the generalized 8 hour work day.
As you can see, I usually work more than my fair share of hours. In total, including November, when I had a week off for Thanksgiving, and including December, when I had two weeks off for winter break, I have worked 317.73 hours more than the average salaried worker. That averages to 7.94 weeks (if work weeks are 40 hours long) extra. Almost two months of time.
Which basically means in six months' time, I have worked enough hours to fill eight months. With three weeks off, I still have managed to work an extra two months.