timezones-api
A Datasette-powered API for finding the time zone for a latitude/longitude point
Try the API here: https://timezones.datasette.io/timezones/by_point
Full background and explanation: Building a location to time zone API with SpatiaLite, OpenStreetMap and Datasette
Uses Shapefiles from https://github.com/evansiroky/timezone-boundary-builder