Mapping a phone number to a timezone? (was RE: What is a time zone?)

[Alan Pritchard]

Indeed there is!

The Global Gazetteer has around 4 million places on file, and many of 
these include area codes and time zone data. I am currently working on 
trying to resolve some of the rather broad statements in the tz database, 
in order to assign a canonical name to each place.

Best wishes
Alan Pritchard
The GLOBAL GAZETTEER: the world on file
http://www.allm-geodata.com
Tel: +44 (0) 1202 417 477