zlacker

>>ChrisM+(OP)
I'm guessing this does not try to handle things like terra nullius (Bir Tawil, Marie Byrd Land, etc.) or where there might not be a "correct" answer over which timezone is in a place (like https://www.972mag.com/the-worlds-only-ethnic-time-zone/)?

>>SahAss+r3
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

>>ChrisM+U3
FWIW, I'd found https://www.geocod.io/ to be a good service a couple years back. They sponsored some conferences I went to, and I needed some geocoding->timezone info. IIRC, at the time, it was $5/month which covered everything we needed. Dunno if that's eye-watering or not.

Seems to have changed pricing a bit since. The 'pay as you go' model now has 2500 API calls/day for free, and $1/2000 API calls after that. My needs never grew in to needing much more than what we hit for that $5/month, so I can't vouch for their service at a large scale, but I enjoyed using it.

No affiliation just a happy former customer.

>>lowerc+Ai
Well the model that I would use, would be about 20,000 or so lookups, every 4 hours.

Might add up.