IANA Time Zone Data released 2016-09-28.
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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. Its management
procedure is documented in BCP 175: Procedures for Maintaining the Time Zone
Database.
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