I'm a teacher (secondary Head of Dept) and usually, I am in school 7.15am - 4.30pm (or similar), so roughly 45-50 hours a week depending on when I leave.
I teach 20 hours a week, plus I have my form which is another 3 hours 45 a week, taking me to 23hrs 45 minutes contact.
I do a lot of duties at break/lunch as I am leadership, so another 3.5 hours.
So, probably 27.5 hours contact.
Then 2 hours CPD meeting each week, 1 hour department meeting per fortnight, 1 hour a fortnight with my line manager, 2 hours a fortnight with people I line manage. So, 4 hours a week.
Not too bad overall but my free periods are my PPA/management time and because they are spread out across the week, I can't get everything done in them so do work at home. A lot are spent on things like lesson visits in my department which I obviously have to do in school hours.
I do really enjoy it though 🙂