Yep, you have to be explicit when coordinating across timezones. I never say "how about 11" in that context, I say "how about 11ET." If you want to do that by u

Yep, you have to be explicit when coordinating across timezones. I never say "how about 11" in that context, I say "how about 11ET." If you want to do that by using UTC as a lingua franca and everyone does their own conversion, that makes a lot of sense. If you want to abolish timezones, that's just brushing the problem under the rug. People keeping different hours in different locales is inherent complexity. This is the crux of it. If you want to abolish timezones, you need to explain why it isn't a problem that people keep different hours in different locales. If you can't, then it boils down to timezones being annoying. They are annoying, but that's not sufficient reason to eliminate them.