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Date:      Sat, 26 Aug 2000 14:19:15 +1100 (EST)
From:      Brendan Kosowski <brendan@bmk.com.au>
To:        Greg Lehey <grog@lemis.com>
Cc:        FreeBSD Questions <freebsd-questions@FreeBSD.ORG>
Subject:   Re: Setting a non-standard timezone.
Message-ID:  <Pine.BSF.3.96.1000826141314.7094A-100000@garfield.bmk.com.au>
In-Reply-To: <20000826121702.H52219@wantadilla.lemis.com>

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I was just getting stressed about the extended (non-standard) daylight
savings period for the Olympics and wondering what I can do to older
versions of FreeBSD which may not know about the extended daylight
savings.


Thanks for all your help, Brendan...

------------------------------------

On Sat, 26 Aug 2000, Greg Lehey wrote:

> On Saturday, 26 August 2000 at 13:26:25 +1100, Brendan Kosowski wrote:
> >
> > How do I set the systems default timezone to a non-standard timezone ?
> >
> > Eg. if I live in zone XYZ and we are 11 hours ahead of GMT.
> 
> *and* if the system doesn't know about it, *and* if you don't have
> daylight savings time...
> 
> ... then you do:
> 
>   # cp /usr/share/zoneinfo/Etc/GMT+11 /etc/timezone
> 
> It's almost never necessary to do this, though, and it's more likely
> that you'll get things wrong.  For example, your message now comes
> from bmkind.lnk.telstra.net, which is connected to
> Ethernet0.lon12.Melbourne.telstra.net.  The time zone in Melbourne is
> Australia/Melbourne, and the time in Melbourne is currently 10 hours
> ahead of UTC.  It won't change to 11 hours ahead until tomorrow
> morning.  I suppose it's possible that you're on your own island
> somewhere out in the Tasman and connecting via PPP to Telstra in
> Melbourne, but I suspect it's more likely that you've jumped the gun
> on the time zone change.
> 
> If you use the correct time zone file, this change will be automatic;
> otherwise you'll have to be sitting there next to the machine at 2 am
> tomorrow morning in order to do the copy.
> 
> > I know how to do this at the user level ( by setting the TZ variable
> > in the .profile to a posix compliant format, eg. XYZ-11 ) but I do
> > not know how to do this at the system default level.
> 
> This is very much a second-best choice.
> 
> Greg
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