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NAME

       tzselect - select a timezone

SYNOPSIS

       tzselect [ -c coord ] [ -n limit ] [ --help ] [ --version ]

DESCRIPTION

       The tzselect program asks the user for information about the current location, and outputs
       the resulting timezone to standard output.  The output is suitable as a value for  the  TZ
       environment variable.

       All interaction with the user is done via standard input and standard error.

OPTIONS

       -c coord
              Instead  of  asking for continent and then country and then city, ask for selection
              from time zones whose largest cities are closest to the location with  geographical
              coordinates  coord.   Use  ISO  6709  notation  for  coord,  that  is,  a  latitude
              immediately followed by a longitude.  The latitude and longitude should  be  signed
              integers  followed  by  an  optional  decimal  point and fraction: positive numbers
              represent north and  east,  negative  south  and  west.   Latitudes  with  two  and
              longitudes with three integer digits are treated as degrees; latitudes with four or
              six and longitudes with five or seven integer digits are treated  as  DDMM,  DDDMM,
              DDMMSS,  or  DDDMMSS  representing  DD  or  DDD degrees, MM minutes, and zero or SS
              seconds, with any trailing fractions represent fractional  minutes  or  (if  SS  is
              present)  seconds.   The decimal point is that of the current locale.  For example,
              in the (default) C locale, -c +40.689-074.045 specifies 40.689  degrees  N,  74.045
              degrees  W,  -c +4041.4-07402.7 specifies 40 degrees 41.4 minutes N, 74 degrees 2.7
              minutes W, and -c +404121-0740240 specifies 40 degrees 41 minutes 21 seconds N,  74
              degrees  2  minutes 40 seconds W.  If coord is not one of the documented forms, the
              resulting behavior is unspecified.

       -n limit
              When -c is used, display the closest limit locations (default 10).

       --help Output help information and exit.

       --version
              Output version information and exit.

ENVIRONMENT VARIABLES

       AWK    Name of a POSIX-compliant awk program (default: awk).

       TZDIR  Name   of   the   directory    containing    timezone    data    files    (default:
              /usr/share/zoneinfo).

FILES

       TZDIR/iso3166.tab
              Table of ISO 3166 2-letter country codes and country names.

       TZDIR/zone1970.tab
              Table  of  country  codes,  latitude  and  longitude,  timezones,  and  descriptive
              comments.

       TZDIR/TZ
              Timezone data file for timezone TZ.

EXIT STATUS

       The exit status is zero if a timezone was successfully obtained  from  the  user,  nonzero
       otherwise.

SEE ALSO

       newctime(3), tzfile(5), zdump(8), zic(8)

NOTES

       Applications  should  not  assume  that  tzselect's  output  matches  the user's political
       preferences.