On Thu, Aug 6, 2009 at 10:39 PM, J. Shirley<jshir...@gmail.com> wrote: > On Thu, Aug 6, 2009 at 7:27 PM, Jim Brunette <ca...@brownhare.com> wrote: > >> Is there a lat/lon database that contains the timezone boundaries? >> >> With a lat/long TZ DB, users could input their city or zip (or heck, if >> they know it, their lat/lon), then the app would associate the user's >> lat/lon with the TZ lat/lon and output the TZ (if the user's lat/lon was >> not found, the app would just fall back to the continent/city names). >> >> To take it one step further, mobile apps with GPS have real-time >> lat/lon, so getting the TZ should be easy... How useful such an mobile >> app would be is another question. >> >> Jim >> >> >> >> >> >> > > geonames.org provides this, via a simple HTTP interface. > > Here's a blog post describing usage: > http://vancouverwebconsultants.com/getting-time-zone-from-latitude-longitude/(though > in PHP) > > To fetch, it's very simple: > http://ws.geonames.org/timezone?lat=$lat&lng=$lng > > -J > Well live and learn. Use someone else's hardware and software to do the heavy lifting. ... ;-)
I'll have to check it out. It is trivial to write Perl that is equivalent to a given PHP code snippet. ;-) Thanks Ted
