US Timing's Mirror of IANA Time Zone Database

The IANA is an entity operated by the Internet Corporation for Assigned Names and Numbers (ICANN), the master keepers of the DNS *(Domain Name System) Roots. The Time Zone Database (often called tz or zoneinfo) contains code and data that represent the history of local time for many representative locations around the globe. It is updated periodically to reflect changes made by political bodies to time zone boundaries, UTC offsets, and daylight-saving rules.

This copy is periodically updated and is generally kept current and is maintained as a public resource. No liability is assumed whether direct or implied for the use of this IANA supplied content.


Latest version
Time Zone Data v. 2011n (Released 2 November 2011) tzdata2011n.tar.gz (205kb)
Time Zone Code v. 2011i (Released 29 August 2011) tzcode2011i.tar.gz (135kb)

Reference Files

Other Links for this mirror

Further information on the Time Zone Database, including implementation details, is described in the IANA TZ code repository.

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