Literally just had this happen this week: We have a standing meeting between NA and London, and I thought we would have to have a talk when they were showing up “an hour late”.
Turns out we all just forgot the offset changed between us.
It’s great; I have a clock that does “auto DST”. The problem is that it does it on the UK dates or the pre-Bush dates. I’m in the US. I therefore have to set it manually 4x/year instead of the 0x/ever as designed.
Turns out we all just forgot the offset changed between us.