<status value="draft"/> <experimental value="true"/> <date value="2023-03-26T15:21:02+11:00"/> <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"/> <jurisdiction> <coding> <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/> <code value="001"/> <display value="World"/> </coding> </jurisdiction> <compose> <include> <system value="https://www.iana.org/time-zones"/> </include> </compose> </ValueSet>

Include all codes defined in https://www.iana.org/time-zones