I guess I should be added to at least the tz-requests mailing list and possibly the tz mailing list as well if it does NOT include the former email addresses by default. I represent the only person at the Jet Propulsion Laboratory who has both an abiding interest in these matters as well as an immediate and on-going need for this information. For the record, I am coding a web-based capability to look up the latitude and longitude of any any geographic name that is being maintained in the http://www.nima.mil/gns/html/index.html web site, which is the National Imagery and Mapping Agency (NIMA) GEOnet Names Server for non-US geographic names, and at the http://www.census.gov/cgi-bin/gazetteer web site of the US Census Bureau, which is the name server for US geographic names. Once, I have the laititude and longitude I am currently planning to find out which of your timezones is the timezone associated with either the country or territory involved or, if the country in question has multiple timezones, to ascertain which of these timezones is the correct one based on the associated latitude and longitude. Finally, I plan to maintain and use your timezone information to find the best estimate of time-of-day at that location for a specified julian date. I say "best estimate" because many of our lookups will necessarily be for future events, and the timezone boundaries, their associated offsets from GMT, and especially their associated daylight savings time rules are obviously only as good as we know them today. The only problem that remains to be solved is the polygon information that is currently burried in the http://www.odci.gov/cia/publications/95fact/802389h.gif file. To automatically lookup which timezone is associated with a given latitude and longitude requires having those polygons. So, I plan to see if the CIA Publications types would be willing to post such a file. If not, I may be forced to beat on the gif file. Anyway, it is really great to see that such a thorough effort to identify and maintain timezone information is occurring. Dave Skinner dave@kirdu.jpl.nasa.gov