{"compose":{"include":[{"system":"https://www.iana.org/time-zones"}]},"contact":[{"telecom":[{"system":"url","value":"http://hl7.org/fhir"}]}],"date":"2026-03-29T21:54:20+00:00","description":"An IANA timezone code for  the timezone offset per [BCP 175](https://www.iana.org/go/rfc6557). The offset is specified as part of a dateTime/instant (or using the tzOffset extension on a date if necessary). The timezone code may also be provided to allow for human display of the location associated with the offset. These are codes like 'America/New_York' or 'America/Los_Angeles'. See [IANA Timezones](https://www.iana.org/time-zones) for the official source, and [Wikipedia](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones) for information","experimental":false,"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-wg","valueCode":"fhir"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status","valueCode":"normative"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm","valueInteger":3}],"id":"timezones","identifier":[{"system":"urn:ietf:rfc:3986","value":"urn:oid:2.16.840.1.113883.4.642.3.1036"}],"jurisdiction":[{"coding":[{"code":"001","display":"World","system":"http://unstats.un.org/unsd/methods/m49/m49.htm"}]}],"meta":{"lastUpdated":"2026-03-29T21:54:20.327+00:00"},"name":"IANATimezones","publisher":"HL7 International - FHIR-Infrastructure","resourceType":"ValueSet","status":"active","text":{"div":"<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: ValueSet timezones</b></p><a name=\"timezones\"> </a><a name=\"hctimezones\"> </a><ul><li>Include all codes defined in <a href=\"http://tx.fhir.org/r5\"><code>https://www.iana.org/time-zones</code></a><span style=\"opacity: 0.5\" title=\"Version is not explicitly stated. When building this specification, the most recent version 20210124 has been used\"> version ⏿20210124</span></li></ul></div>","status":"generated"},"title":"IANA Timezones","url":"http://hl7.org/fhir/ValueSet/timezones","version":"6.0.0-ballot4"}