Changes affecting future time stamps

  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.)

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.