>> who says that timezones have to be separated by one hour each? > > The Earth says. It takes 24 hours to revolve. Wrong
>> Why aren't they separated by 30minutes, or 20, or 10? Or 2 hours? > > Why isn't an hour defined to be 30 minutes? > >> Or why don't we have a global time? > > Like UTC? > >> Your 25 timezones are an abstraction the same way > > Not the same way at all. The 25 timezones I speak of are > not merely an abstraction, but related to longitude. > >> as are the 400 apparently in use by people all over the world > > Where the correlation to longitude is much looser. > Granted, it doesn't need to be for non-navigational > purposes. And although governments can legislate things > like DST, they can't legislate longitude. > >> - and last time I checked, there was no >> fundamental law in physics or such that limited the allowed or sensible >> number of timezones... > > Isn't there some law somewhere that says the circumference > of a sphere is 360deg? Doesn't that same law mean that no two > points on a sphere can be seperated by more than 180deg > longitude? Doesn't that make GMT+13 non-sensible? > >> Diez > -- http://mail.python.org/mailman/listinfo/python-list