pytz has so many timezones!

Diez B. Roggisch deets at nospam.web.de
Tue Oct 9 23:24:52 CEST 2007


>> 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
> 



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