Trending @Accenture; Late Client Meetings Beyond Extended Shift

Hi everyone, I wanted to get some thoughts or advice on a situation I’m currently facing at work.

My official shift is from 11 AM to 8 PM. A while ago, our manager requested the team to extend work hours till 9 PM due to the client being available later in the day, and we've all been following that.

Lately, though, client meetings are being scheduled at 9 PM or even later—sometimes running until 9:30 or 10 PM. This goes beyond the already extended shift, and it's becoming increasingly difficult to manage consistently.

I missed one such meeting recently, and my manager sent me an email saying that everyone else attended and that this won’t be acceptable going forward.

So I have a few questions:

Is it expected or reasonable to attend meetings beyond the agreed extended hours without a formal shift change?

Should I just attend these late meetings to avoid friction, or is it fair to set boundaries?

How should I respond professionally to my manager’s email in this situation?

Would really appreciate your perspectives—especially if you’ve been through something similar.