I didn't know either, and I am surprised too. @Adam we're not Americans, what's surprising about us not knowing?! lmao
I kind of figured seeing as Canada has multiple time zones and lines running N and S that separate them, that it would also be common knowledge that those same lines extend downwards into other countries.
It's nearly the same thing as Canada's time zones, which is why I'm surprised a lot of Canadians don't know the US is separated as such.