Greg Black wrote:

| All the systems that you mention should read the Olson data files | as-is; you shouldn't need to link any of the tz code.

Which leads to the question: under what circumstances would you want to use the Olson tz code?

I need to convert a local time attached to a Country, State/City into a GMT time for each incoming request received by our server. This must work in a multithreaded architecture, i.e; we have a fixed number of threads which process the incoming request. Do you have a list of countries, states for the US, cities which matches the timezone list. The only localisation info I receive from the client request is the Country, State or County if exist City and Longitude/Latitude. My idea is to make an exhaustive list of all the countries of the planet associated to the time zone. Each country is a polygon located by two points(X=Longitude, Y=Latitude). Forn the France, it will be simple France/Paris but for the US, the timezone matches a set of states and I need the association table which gives for a given timezone the list of states, cities ... North West North East X1, Y1 -----------------------! ! ! ! ! !----------------------------X2, Y2 South West South East -- François REYGAGNE. Software Architect. opt[e]way S.A., 2881 route des Crêtes, BP308 06906 Sophia Antipolis Cedex, FRANCE tél: +33 (0)4 92 95 27 01 http://www.opteway.com -- François REYGAGNE. Software Architect. opt[e]way S.A., 2881 route des Crêtes, BP308 06906 Sophia Antipolis Cedex, FRANCE tél: +33 (0)4 92 95 27 01 http://www.opteway.com