tzdb Release 2015d

Changelog (from NEWS)

Changes affecting future timestamps

    Egypt will not observe DST in 2015 and will consider canceling it
    permanently.  For now, assume no DST indefinitely.
    (Thanks to Ahmed Nazmy and Tim Parenti.)

  Changes affecting past timestamps

    America/Whitehorse switched from UT -09 to -08 on 1967-05-28, not
    1966-07-01.  Also, Yukon's time zone history is documented better.
    (Thanks to Brian Inglis and Dennis Ferguson.)

  Change affecting past and future time zone abbreviations

    The abbreviations for Hawaii-Aleutian standard and daylight times
    have been changed from HAST/HADT to HST/HDT, as per US Government
    Printing Office style.  This affects only America/Adak since 1983,
    as America/Honolulu was already using the new style.

  Changes affecting code

   zic has some minor performance improvements.