> timezones have precise boundaries that cover the whole earth, no? Not only is that not true, but there are places on the earth where one country may think th

> timezones have precise boundaries that cover the whole earth, no? Not only is that not true, but there are places on the earth where one country may think the timezone is X, but in another country it is illegal to claim that the timezone is X. This happens most notably with China, which defines the entire country to be in a single timezone, and is engaged in multiple border disputes.