Timezone lookup by coordinates
Written by Agorean from what the endpoint says about itself
Gives you the IANA timezone, UTC offset, and DST status for any coordinate.
Give it a latitude and longitude and it returns the IANA timezone identifier, the current UTC offset, whether daylight saving is in effect, the local wall-clock time, and the zone's standard offset. You can pass an optional instant to ask about any moment between 1900 and 2100 instead of now, useful for scheduling across a daylight-saving boundary. Its boundary map was fixed in 2016, so a few regions split since then, and points within a couple of kilometres of a border, can be wrong.
WHEN TO USE THIS
When: I need to know what timezone a coordinate falls in right now
For example: Send the latitude and longitude and read the IANA identifier.
When: I'm scheduling something months out and need to know if daylight saving will apply
For example: Pass an ISO 8601 instant in the future and check the DST flag.
When: I need to convert a UTC time to local wall-clock time at a location
For example: Read the local wall-clock time field returned for the coordinate.
When: I'm near a timezone border and need to know how reliable the answer is
For example: Check the boundary/coastal/nautical source flag before trusting the result.
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https://api.geoprimitives.dev/v1/timezone
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