How to get a time zone from a location using latitude and longitude coordinates?

Question

Given the latitude and longitude of a location, how does one know what time zone is in effect in that location?

In most cases, we are looking for an IANA/Olson time z

Answer 1

disclosure: I am the author of the docker-image described below

I have wrapped https://github.com/evansiroky/node-geo-tz in a very simple docker-container

https://hub.docker.com/repository/docker/tobias74/timezone-lookup

You can start the docker-container with

docker run -p 80:3000 tobias74/timezone-lookup:latest

This exposes the lookup-service on your localhost on port 3000. You can then do a timezone-lookup by

curl "localhost:3000/timezone?latitude=12&longitude=34"