Pulled up for “picking on someone at work”.

How are you getting on now @ThunderRoadRunner?

Try the 'what do you want me to not do' approach first, OP. Then if they say you need to do all of it, I'd suggest you... don't. Do as much as you can in office hours and then go home. State domestic responsibilities. They surely can't argue with you on that.

I used to do this when my boss insisted I did more than my own job and that everything had to be done first thing as a priority. I asked him if he could list which job was 1st first thing, which was 2nd first thing etc. You cannot do a day's work (and more) with everything being a priority.

I got a timetable to work from and a comprehensive list of my responsibilities and I stuck to it. It meant that things weren't done on time, but tough shit, this is what he told me to do and in what order. If co-workers are not doing their jobs and generally taking the piss, why do you have to pick up the slack?

In the end I got so fed up I left and found another job and the relief of leaving was like a lead weight being lifted off me. You are a long time at work so don't spend it being miserable. Spend the weekend looking for something else and when you find it you can tell them to stick their job where the sun doesn't shine.

This.
I was given an extra job, on top of my own. I asked my boss which parts she was happy for me to drop. She said none! So I didn't do it! It was crazy of her.

So you ask manager which of your usual tasks they want you to drop as you cannot complete the work in the remaining time. Stay calm, no emotional language, just a simple question.

Why don’t you want to do it? I don’t think you can refuse unless it’s above your grade really.

What you do need to do is ask about prioritisation of your usual work whilst you are doing this project.

IDK... If they've put it in the diary, it means they are acknowledging that you are doing someone else's work which is useful for Reviews and Promotions. It also means they then have evidence that the person who should have done the work clearly didn't which helps them sack them!

OP, I think it is now time for you to take time out of work altogether due to work-related stress. If your managers are choosing to ignore the poor performance of others for a quiet life - resulting in good staff being imposed on even more - then management will have to suffer the consequences of their absence due to ill-health / stress.
Look after yourself.

Well, at least they gave you allocated time to do it so that's a bit of a progress.

How's it going @ThunderRoadRunner ? I'm hoping management have changed their tune, and are resolving issues?

I think everyone should take a leaf out of this employees way of working

Don’t do anything till 11, go to lunch at 12, come back at 1.30 and then go for a break for 45 mins

and if a manager complains tell them to wind their neck in

My advice at this point, if you don't think it's too weird a suggestion, would be to contact someone like Ben Askins (he puts videos on social media) as this is just right up his street. He may be able to offer you some constructive advice.

Definitely do a diary including what has happened since your return to work after your break. If enough of you report to OH, surely something has to be done? Can enough of you join a union??

Over the weekend write a list of all the things you have been asked to do that are not in your job description or pay grade and keep a note of all the time people are not at their desk or workspace. It is hard to remember these things off the top of your head in a meeting

The person who took my job, and wanted more money than I got for doing it, used to go AWOL for at least 1 1/2 hours every lunch time, not bad for a 30 min break. Our manager didn't like phones unanswered so when she cleared off I used to transfer her calls to his phone. He also didn't like this. I told him that when I am busy answering her phone I can't answer my own which makes me look bad. She was a smoker as well so had plenty of "fag breaks", I don't smoke but they weren't impressed when I asked for a Gin and Tonic break instead.

When she was out on her extended lunch the office secretary would ring me up and I would sing Eric Carmen's All By Myself to her. She would then make a note of every time I was on my own in the office for an hour or more.

This sort of shit can really get to you after a while and you need to look after your long term health. I decided I had had enough and got another job. Funnily enough there was a big reorganization after I left when they found out who did the work but wasn't there any more to do it.

Hopefully you can get something sorted out early next week, but in the meantime enjoy the weekend and relax a bit.

Why is your manager such a wet drip?! He doesn't like confrontation and wants you to do their work?! What an idiot, you'll all end up leaving because of it! The managers will end up finishing the work, and I'm sure they'll discipline the new staff then. I'd tell your colleagues to keep logging what they're doing/not doing. Stop working over/extra. Report all missed deadlines. Until it all gets picked up by upper management.

It soundsike you need to refer this to HR.

I hope things escalate so that you get a successful resolution to this.

I'm so sorry nothing has changed. It's definitely a management issue. Hopefully if all the good colleagues come together and back each other up changes might happen.

I had read all the updates. My advice remains the same.
She needs to force management to manage by handing problems back to them. By attempting to manage the shirkers herself, she IS effectively picking on them as she is not their boss.
A simple bit of clear thinking and communication to the bosses (and escalating the issue if bosses refuse to do their job) will sort it out.

Do not work harder to bail them out.
Start leaving the office a mess as well.

You need to make this a problem for the boss rather than taking on an implied responsibility. Until this causes your manager grief nothing will change.

There is no benefit raising this with HR. They are there to look after the company rather than you.

Or get another job.

It the managers aren’t fussed about whether the job gets done then what does it matter? What are they going to do? Get angry with her for not doing not doing her job when she literally can’t? So yeah, just stop doing their work for them.

Perhaps you should read all of the OP's updates before you tell her to wind her neck in

Back at you!