I hate it when it’s 5.30pm on a friday afternoon and I’m all set to wind down and an issue crops up. Because the other party is in a later timezone they have a few hours to play around with the issue, but don’t they realise I don’t? Annoying.
It’s on par with people who organise conference calls and meetings at unsociable hours, because they want to show they’re working, or they’re in another timezone and they don’t care. It’s the perils of working in an international company.