timezone-boundary-builder

Evan Siroky's Timezone Boundary Builder[0] is a good source of time zone boundary mappings. It can be used via a library in nearly any language you would want[1], or loaded directly into Postgres and used with PostGIS in queries[2] (of course, if you load it into your DB you should have a process for keeping it updated). It would be wonderful if Jiff supported coordinates-to-tz lookups out of the box :) [0]: https://github.com/evansiroky/timezone-boundary-builder/rele... [1]: https://github.com/evansiroky/timezone-boundary-builder#look... [2]: https://www.crunchydata.com/blog/timezone-transformation-usi...

It just uses the map that was generated by the TimeZone Boundary Builder[0]. It does fine for my purposes. I just figured it might be useful. One reason that I wrote it, was because I couldn't find a decent SaaS that didn't charge eye-watering prices, for a fairly slow response. I wrote it in an afternoon or two. Not really an ambitious project. I don't usually do "Show HN." Not interested in competing with anyone. If you like it, use it. If you don't like it, don't use it. If there are clear bugs, I'm always open to feedback. [0] https://github.com/evansiroky/timezone-boundary-builder

Super nice! I wanted to do an Arduino-based GPS clock that always shows the correct local time, but got bogged down getting the exact timezone boundaries. Thanks for bringing up https://github.com/evansiroky/timezone-boundary-builder !