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

NAME
       tzselect - select a time zone

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 time zone description 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
              40.689oN, 74.045oW, -c +4041.4-07402.7 specifies 40o41.4'N,
              74o2.7'W, and -c +404121-0740240 specifies 40o41'21''N,
              74o2'40''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 time zone data files (default:
              /usr/local/etc/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, zone names, and
              descriptive comments.

       TZDIR/TZ
              Time zone data file for time zone TZ.

EXIT STATUS
       The exit status is zero if a time zone 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.

                                                                   TZSELECT(8)