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Time & Time Zones APIs

Time zone lookups by zone name, coordinates or IP address. TimeAPI.io is free with no key and returns current time, UTC offset and Unix timestamps. TimeZoneDB adds DST details, city lookups and zone conversion on a freemium plan with a key. World Time & Weather takes a different approach, publishing static JSON with local time, DST and weather for a fixed list of cities.
3 listings of 69 in catalogue
TableRows
APIPricingAuthFormatFree tierStatus
TimeAPI.ioCurrent time and UTC offset by IANA zone, coordinates or IP, plus time-zone info and Unix timestamps.
Utilities › Time & Time Zones
FreeNoneJSONUnlimitedLive
TimeZoneDBLocal time, UTC offset and DST for 400+ zones by zone name, coordinates, city or IP, plus zone conversion.
Utilities › Time & Time Zones
FreemiumAPI keyJSON10k+/dayLive
World Time & WeatherCurrent local time, timezone/DST info, and weather for 400 cities as static JSON, updated every 30 min.
Utilities › Time & Time Zones
FreeNoneJSONUnlimitedLive

Choosing a Time & Time Zones API

Is there a free Time & Time Zones API?

Yes. TimeAPI.io and World Time & Weather are free to use, and TimeZoneDB has a free tier alongside paid plans.

Which Time & Time Zones APIs work without an API key?

TimeAPI.io and World Time & Weather need no key or sign-up, so you can try them with a plain request.

Can I call a Time & Time Zones API from front-end JavaScript?

World Time & Weather allows cross-origin requests and needs no key, so it works straight from the browser. For the others, call them from your server so your key stays private.

Can I use Time & Time Zones APIs in a commercial project?

World Time & Weather permits commercial use. TimeZoneDB restricts it, for example to non-commercial or attributed use, so read the terms first.

Which Time & Time Zones APIs work with AI agents?

TimeAPI.io publishes an OpenAPI spec for generating clients and tools.

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