10-10-2008
What OS are you running?
You will need to reboot the server even in Solaris 10.
Anything that displays time may need restarted. The TIMEZONE file
is read during initialization and not accessed again. While restarting
daemons might do the trick, the only way to be sure all pieces of
the system have seen the change is reboot, especially for something
that will affect cron
Example
1) As a root execute the following command.
#zic /usr/share/lib/zoneinfo/asia
2)Edit /etc/TIMEZONE file and set the TZ variable to "Asia/Calcutta".
3. As root, execute the following:
#TZ=Asia/Calcutta
#export TZ
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LEARN ABOUT MOJAVE
datetime::timezone::local::unix
DateTime::TimeZone::Local::Unix(3) User Contributed Perl Documentation DateTime::TimeZone::Local::Unix(3)
NAME
DateTime::TimeZone::Local::Unix - Determine the local system's time zone on Unix
VERSION
version 1.63
SYNOPSIS
my $tz = DateTime::TimeZone->new( name => 'local' );
my $tz = DateTime::TimeZone::Local->TimeZone();
DESCRIPTION
This module provides methods for determining the local time zone on a Unix platform.
HOW THE TIME ZONE IS DETERMINED
This class tries the following methods of determining the local time zone:
o $ENV{TZ}
It checks $ENV{TZ} for a valid time zone name.
o /etc/localtime
If this file is a symlink to an Olson database time zone file (usually in /usr/share/zoneinfo) then it uses the target file's path name
to determine the time zone name. For example, if the path is /usr/share/zoneinfo/America/Chicago, the time zone is "America/Chicago".
Some systems just copy the relevant file to /etc/localtime instead of making a symlink. In this case, we look in /usr/share/zoneinfo
for a file that has the same size and content as /etc/localtime to determine the local time zone.
o /etc/timezone
If this file exists, it is read and its contents are used as a time zone name.
o /etc/TIMEZONE
If this file exists, it is opened and we look for a line starting like "TZ = ...". If this is found, it should indicate a time zone
name.
o /etc/sysconfig/clock
If this file exists, it is opened and we look for a line starting like "TIMEZONE = ..." or "ZONE = ...". If this is found, it should
indicate a time zone name.
o /etc/default/init
If this file exists, it is opened and we look for a line starting like "TZ=...". If this is found, it should indicate a time zone name.
AUTHOR
Dave Rolsky <autarch@urth.org>
COPYRIGHT AND LICENSE
This software is copyright (c) 2013 by Dave Rolsky.
This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.
perl v5.18.2 2013-10-28 DateTime::TimeZone::Local::Unix(3)