---
type: "valueset"
title: "IANA Timezones"
valueset: "timezones"
---
# IANA Timezones

- **Status**: draft
- **Name**: IANATimezones
- **Title**: IANA Timezones
- **Publisher**: HL7 International - FHIR-Infrastructure
- **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

## Content (Compose)

- **System**: https://www.iana.org/time-zones

## ValueSet XML



```xml
<?xml version="1.0" encoding="UTF-8"?>

<ValueSet xmlns="http://hl7.org/fhir">
  <name value="IANATimezones"/>
  <title value="IANA Timezones"/>
  <status value="draft"/>
  <experimental value="false"/>
  <publisher value="HL7 International - FHIR-Infrastructure"/>
  <contact>
    <telecom>
      <system value="url"/>
      <value value="http://hl7.org/fhir"/>
    </telecom>
  </contact>
  <description value="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"/>
  <compose>
    <include>
      <system value="https://www.iana.org/time-zones"/>
    </include>
  </compose>
</ValueSet>
```