What's your worst time zone mix-up?

Mine: We scheduled a call for 8 PM IST, but somewhere along the way it became 7 PM on the client's side. They joined an hour early and waited. Mix-ups like that are why MeetETA shows everyone's time on one screen, so nobody has to do the math.

We launch on Oct 27. Until then, I'd love to hear your stories and what you wish your time zone tool did.