RE: Very unique need

Oh, do you have a source of lat/lon coordinates for the boundaries of
time zones?  It's a nontrivial task to compile one and keep it up to
date, and I'm not aware of anybody who has taken on the responsibility
of doing that. I hope you can show me that I'm an uniformed boob!


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Paul H. Harder II, Ph.D., AMS
Meteorologist and Software Developer
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-----Original Message-----
From: William Heath [mailto:[email protected]]
Sent: Monday, March 24, 2008 20:49
To: Harder, Paul
Cc: [email protected]
Subject: Re: Very unique need

I think I may have found a possible solution.  If you go to:

http://www.world-gazetteer.com/wg.php?x=&men=gcis&lng=en&des=wg&srt=npan
&col=abcdefghinoq&msz=1500&geo=-54

You can find all the cities for a certain country with their
longitude/latitude.  I believe it is possible to know the
longitudes/latitudes for a certain timezone yes?  If so then you can
know all the countries and cities in a certain timezone.  There is also
a perl module for interfacing with the gazetteer data at:

http://search.cpan.org/~lbrocard/WWW-Gazetteer-0.23/Gazetteer.pm

The only problem I have now then is finding the postal codes for the
cities.  Any ideas on that?

-Tim

On Mon, Mar 24, 2008 at 1:27 PM, Harder, Paul <
[email protected]> wrote:

>  That is not, in fact, a unique need.  I have it too, but I find that
> I am having to live my life without satisfying the need. Hmmm...,
> maybe it's just a "want".  The sad fact is that there is no source of
> information (that I or anybody else on this list has been able to
> find) that gives you what you want.  To know all of the cities, towns,
> villages, hamlets and airports that are within a given time zone, you
> will have to actually visit all of the cities, towns, villages,
> hamlets and airports in the world, ask them what time zone they are
> in, and compile a database from which you can later select only those
> cities, towns, villages, hamlets and airports in the zone of interest.

> Of course, by the time you finish a small subset of that task, some of
> those cities, towns villages, hamlets and airports will have changed
> from one time zone to another, and they likely won't think to tell you
> about it. To further complicate this, many countries and states are
> divided among multiple time zones, and there is nothing (in principle)
> to prevent even a postal code to be so divided if the folks who live
there choose to divide it.
> If that sounds like I'm depressed... Call me "Eeyore".  I'm finding
> ways to work around the issue. I hope you do to.
>
> Then again, if you ever do find a solution to this problem, I hope
> you'll remember to tell all of us here on this list.
>
>
> _______________________________
> Paul H. Harder II, Ph.D., AMS
> Meteorologist and Software Developer
> Weather Insight, L.P.
> www.WeatherInsight.com
> Direct: 713-361-4966, Tech Support: 713-361-4985 Weather Insight -
> Redefining Weather Risk Management
>
> This e-mail is strictly confidential, privileged, and only for the use
> of the intended recipients.  Please notify sender immediately if you
> have received this in error.  Unauthorized interception of this e-mail
> is a violation of federal criminal law.
>
>
>
> -----Original Message-----
> From: William Heath [
> mailto:[email protected] <[email protected]>]
>
> Sent: Monday, March 24, 2008 20:17
> To: [email protected]
> Subject: Very unique need
>
> Hi All,
>
> I am enjoying DateTime::TimeZone as usual.  I have a unique need to be
> able to somehow know all the countries, cities, and postal codes that
> are in a certain TimeZone, can anyone recommend a way to do that?
>
> -Tim
>