Getting timezone information on iPhone for coordinates

For iPhone development开发者_开发问答: How can I get the timezone and DST information for any place given that I only have geographic coordinates. (NSTimezone does not have any such method)

You could use a web service (like so). I believe with this particular service you are limited to one request per second. Hope that helps!

DRT Engine will return a timezone offset when passed geographic coordinates (latitude/longitude) and a datetime.