Latitude/Longitude to Olsen timezone name

[Ed Perrone]

I am working on an application where the user will input a date, time, and 
location, and I will need to convert that time into the equivalent 
GMT.  This means I will need to locate the input data within one of the 
Olsen time zones in order to create and manipulate a Date::Time object.

Unfortunately, "city/province/nation" or "latitude/longitude" don't seem to 
convert easily into the time zone names used in Date::Time.

Example:  User inputs May 15, 1973, Austin, TX, USA.  I need to figure out 
which of the Olsen zones "Austin TX" is located in.  I will have available 
the city/state-province/nation name, as well as ISO-3166-2 codes for 
US/Canada states/provinces, FIPS 10-4 codes for other nations/regions, and 
longitude/latitude of the specific place in question.  What I need to find 
from this is the proper time zone to use for that date/location.

Does anyone know of any tool or routine that might be able to do this type 
of conversion?

Many thanks!

--- Ed

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Ed Perrone
Interactive Web Development
[EMAIL PROTECTED]
http://www.edperrone.com
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