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IANA Time Zone Database

The canonical tz database.

Visit IANA Time Zone DatabaseDocs

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CategoryCalendars, Scheduling & Time
AuthenticationNo auth
PricingFree
Websitehttps://www.iana.org/time-zones
Docshttps://data.iana.org/time-zones/tz-link.html
Last checked2026-10-14
As JSON/api/v1/directory/iana-time-zone-database.json