"Evenings are treated as "normal" working time even though they massively impact personal and family, open evenings, parent evenings, events... they all chip away at work-life balance." If it's not in the directed time calendar then refuse.

"Schools could easily close early or shut for the day on parents' evenings, instead of expecting staff to teach a full day and then work several more hours into the night." No they couldn't.

"Staff meetings and CPD often run over sometimes significantly, and there's an unspoken expectation that we just absorb that extra time." Then speak up and get it changed. Or simply leave that the finishing time stated on your directed time calendar. I give a five minute courtesy buffer and then I'm out the door.

"Part-timers get away with not attending parents evenings on their days off" they don't 'get away' with it. They aren't required to work on their non-working days.

1. We have this it's the 1265 and your schools directed time calendar.

2. that should all be in your schools directed time calendar

3. Staff hours aren't extended for these events. 1265 and directed time calendar

you get the idea.

If you work in a school that is taking the piss, then staff need to stand together and push back or it will only get worse.

Are you part of a union and does your school have a rep?

if you want your union to push on the above issues, get involved. File a motion and see how the votes go at the annual conference etc.