c4d9468ea0
Avoid using parenthesis enclosure macros (.Pq and .Po/.Pc) with plain text. Not only this slows down the mdoc(7) processing significantly, but it also has an undesired (in this case) effect of disabling hyphenation within the entire enclosed block.
130 lines
4.1 KiB
Groff
130 lines
4.1 KiB
Groff
.\" Copyright (c) 1996 Wolfram Schneider <wosch@FreeBSD.org>. Berlin.
|
|
.\" All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.Dd January 24, 1996
|
|
.Dt TZSETUP 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm tzsetup
|
|
.Nd set local timezone
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl n
|
|
.Op Ar default
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
program reads a database of timezone information and presents a menu
|
|
allowing the user to select a specific zone without knowing the details
|
|
of the database layout. The selected zone is installed as the system
|
|
default zone.
|
|
.Nm
|
|
also determines whether any adjustment is necessary for systems where
|
|
the hardware clock does not keep
|
|
.Tn UTC .
|
|
.Pp
|
|
The following option is available:
|
|
.Bl -tag -offset indent -width Fl
|
|
.It Fl n
|
|
Do not create or copy files.
|
|
.El
|
|
.Pp
|
|
It is possible to short-circuit the menu system by specifying a
|
|
.Ar default
|
|
on the command line; this is intended mainly for pre-configured
|
|
installation scripts.
|
|
.Sh TIMEZONE DATABASE
|
|
The contents of the timezone database are indexed by
|
|
.Pa /usr/share/zoneinfo/zone.tab .
|
|
This file lists, for each timezone data file, the
|
|
.Tn ISO
|
|
3166 territory code, approximate geographical coordinates
|
|
(in
|
|
.Tn ISO
|
|
6709 format),
|
|
and location within the territory.
|
|
.Pp
|
|
The maintainers of the database maintain the following policies:
|
|
.Bl -enum -offset indent
|
|
.It
|
|
At least one zone for every country or inhabited geographical territory.
|
|
.It
|
|
One zone for every distinct, documented timezone history since the
|
|
beginning of the
|
|
.Ux
|
|
epoch (January 1, 1970,
|
|
.Tn GMT ) .
|
|
.It
|
|
Each zone is named for the most populous city therein. (Where possible,
|
|
the database includes pre-1970 history for its city.)
|
|
.El
|
|
The source code to the database
|
|
.Pq Pa /usr/src/share/zoneinfo/[a-z]*
|
|
contains many additional comments and documentation references for the
|
|
historically minded.
|
|
.Sh BUGS
|
|
Programs which are already running when
|
|
.Nm
|
|
creates or updates
|
|
.Pa /etc/localtime
|
|
will not reflect the updated timezone.
|
|
When the system is first configured for a
|
|
.Pf non- Tn UTC
|
|
hardware clock, it is necessary to run
|
|
.Xr adjkerntz 8
|
|
(which normally happens as a part of system startup) in order to update
|
|
the kernel's idea of the correct timezone offset.
|
|
.Sh FILES
|
|
.Bl -tag -width /usr/share/zoneinfo/zone.tab -compact
|
|
.It Pa /etc/localtime
|
|
current time zone file
|
|
.It Pa /etc/wall_cmos_clock
|
|
see
|
|
.Xr adjkerntz 8 .
|
|
.It Pa /usr/share/misc/iso3166
|
|
mapping of
|
|
.Tn ISO
|
|
3166 territory codes to names
|
|
.It Pa /usr/share/zoneinfo
|
|
directory for zoneinfo files
|
|
.It Pa /usr/share/zoneinfo/zone.tab
|
|
mapping of timezone file to country and location
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr date 1 ,
|
|
.Xr adjtime 2 ,
|
|
.Xr ctime 3 ,
|
|
.Xr timezone 3 ,
|
|
.Xr tzfile 5 ,
|
|
.Xr adjkerntz 8 ,
|
|
.Xr zdump 8 ,
|
|
.Xr zic 8
|
|
.Sh DISCLAIMER
|
|
The representation of certain localities as being associated with certain
|
|
countries and/or territories is for the purposes of identification only,
|
|
and does not imply any endorsement or rejection on the part of the
|
|
.Fx
|
|
Project of the territorial claims of any entity.
|