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TZSETUP(8)                  System Manager's Manual                 TZSETUP(8)



NAME
       tzsetup - set up old-style time zone information in the kernel

SYNOPSIS
       /usr/etc/tzsetup

DESCRIPTION
       tzsetup  attempts  to  find  the offset from GMT and old-style Daylight
       Savings Time correction type (see gettimeofday(2))  that  most  closely
       matches  the default time zone for the machine, and to pass this infor-
       mation to the kernel with a settimeofday () call (see gettimeofday(2)).
       This  is  necessary  if programs built under releases of SunOS prior to
       4.0 are to be run; those programs get time zone  information  from  the
       kernel using gettimeofday.

       If  it  cannot  find the offset from GMT, the offset is set to 0; if it
       cannot find the Daylight Savings Time correction type,  it  is  set  to
       DST_NONE,  indicating that no Daylight Savings Time correction is to be
       performed.

DIAGNOSTICS
       tzsetup: Can't open /usr/share/lib/zoneinfo/localtime: reason
              The time zone file for  the  current  time  zone  could  not  be
              opened.

       tzsetup: Error reading /usr/lib/zoneinfo/localtime: reason
              The time zone file for the current time zone could not be read.

       tzsetup:  Two  or  more  time  zone  types  are equally valid -- no DST
       selected
              There were two or more Daylight Savings  Time  correction  types
              that  generated  results  that were equally close to the correct
              results.  None of them was selected.  Programs built under  ver-
              sions of SunOS prior to 4.0 may not convert dates correctly.

       tzsetup: No old-style time zone type is valid -- no DST selected
              None  of  the  Daylight  Savings Time correction types generated
              results that were in any way correct; none of them was selected.
              Programs built under versions of SunOS prior to 4.0 may not con-
              vert dates correctly.

       tzsetup: Warning: No old-style time zone type is completely valid
              None of the Daylight Savings  Time  correction  types  generated
              results  that  were  completely  correct;  the  best of them was
              selected.  Programs built under versions of SunOS prior  to  4.0
              may not convert dates correctly.

       tzsetup: Can't set time zone
              tzsetup  was  run  by a user other than the super-user; only the
              super-user may change the kernel's notion of  the  current  time
              zone.

SEE ALSO
       gettimeofday(2), tzfile(5), zic(8)



                               17 November 1987                     TZSETUP(8)