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  Tru64 UNIX Time Origin

  The beginning of time for and Tru64 UNIX systems is:
      Thursday January 1 00:00:00 1970

  The reason for this date being chosen is that this was the year
  that UNIX, the ``parent'' of Tru64 UNIX, was first released.

  Thus dates prior to 1970 are BU; 1970 and later dates are

  AU.

  Additional topics:

  *   Julian Period

  *   Brief History of the Gregorian Calendar

  *   Julian Period

  *   History and DECwindows Calendar
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