Lookup a time zone by latitude/longitude using the nearest neighbor method.

The nearest neighbor method can sometimes be inacurrate, if compared to a point lookup in a polygon. In most cases, the risk of inaccuracy is acceptable.

Add this line to your application's Gemfile:

gem 'tzwhere'

And then execute:

$ bundle

Or install it yourself as:

$ gem install tzwhere

TZWhere.lookup(41.7599, -87.2079)
# => "America/Chicago"

Ensure the test dependencies are installed:

$ bundle

Run the test suite:

$ rake test

See CONTRIBUTING.md

Copyright (c) 2014 Adam Daniels (adam@mediadrive.ca).

Geocode data (points.dat) by Geonames.org is licensed under CC BY 3.0

See LICENSE for details.