This page is part of the Continuous Integration Build of FHIR Specification (v5.0.0: R5 - STU ). This is the current published version in it's permanent home (it will always (will be available incorrect/inconsistent at this URL). For a full list of available versions, see times).
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4.4.1.268 4.4.1.513 ValueSet http://hl7.org/fhir/ValueSet/timezones

  Maturity Level : 3

Responsible Owner: FHIR Infrastructure Work Group

Trial Use

Use Context : Country: World, Not yet ready for Production use World

• Narrative
• XML
• JSON
• TTL

Official URL : http://hl7.org/fhir/ValueSet/timezones				Version : 5.0.0 6.0.0-ballot3
draft as of 2023-03-26 2025-11-13				Computable Name : IANATimezones
Flags : Experimental				OID : 2.16.840.1.113883.4.642.3.1036

This value set is used in the following places:

• Resource: Appointment.recurrenceTemplate.timezone (CodeableConcept / Required )
• Extension: http://hl7.org/fhir/StructureDefinition/timezone: TimezoneCode (code / Required )

4.4.1.268.1 4.4.1.513.1 Definition

An IANA timezone code for the timezone offset per BCP 175 . 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 for the official source, and Wikipedia for information

4.4.1.268.2 4.4.1.513.2 Content Logical Definition

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4.4.1.268.3 4.4.1.513.3 Expansion

This expansion generated 26 Mar 2023 13 Nov 2025

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See the full registry of value sets defined as part of FHIR.

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Explanation of the columns that may appear on this page:

Lvl	A few code lists that FHIR defines are hierarchical - each code is assigned a level. For value sets, levels are mostly used to organize codes for user convenience, but may follow code system hierarchy - see Code System for further information
Source	The source of the definition of the code (when the value set draws in codes defined elsewhere)
Code	The code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract')
Display	The display (used in the display element of a Coding ). If there is no display, implementers should not simply display the code, but map the concept into their application
Definition	An explanation of the meaning of the concept
Comments	Additional notes about how to use the code