On Mon, Jan 17, 2005 at 03:47:37PM -0800, Paul Eggert wrote:
From: Doug Royer [mailto:Doug@Royer.com] Sent: Monday, January 17, 2005 2:12 PM I am adding the POLYGON property targeted for the -01 version that has an ADD/DELETE parameter to allow for the optional inclusion of latitude/longitude geographic areas to be included that include (add) and exclude (delete) areas from the time zone geographic region (again from the CALSCH mailing list discussions).
It would be interesting to see a database containing some of that information, as a sample, as I don't offhand follow why DELETE would be useful.
Consider the imact of a region like America/Indiana/Knox on the polygon for America/New_York --- you need to subtract a polygon for the former out of the polygon for the latter in order to properly describe the geographic region encompassed by America/New_York. --Ken Pizzini