tzdataservice

Java web service to provide timezone names for given latitude and longitude based on data from an ESRI shapefile.

prerequisites

Java JDK 11, Ant, Ivy
Download timezones-with-oceans.shapefile.zip from https://github.com/evansiroky/timezone-boundary-builder/releases/ and unpack it into an empty directory.

building

    ant package

running the service

    java -jar tzdataservice.jar /path/to/combined-shapefile-with-oceans.shp

querying the REST service

E.g. with curl:

    curl http://localhost:28100/tz/bylonlat/9/50

More information

The blog post Determine time zone with GeoTools from shapefiles explains the background and implementation of the program. It is also available in German language: Zeitzone mit Geotools aus Shapefiles bestimmen.

License

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.