Re: Fixing time zone

[Rodolfo Medina <rodolfo.medina@gmail.com>]

Rodolfo Medina <rodolfo.medina@gmail.com> writes:

> A friend of mine let me know that he receives my emails with a time stamp one
> hour into the future.  It seems my computer or my service that forwards to
> gmail is set to the wrong time or time zone.  From my header:
>
>   Received: from hda6-hyundai ([151.83.162.201])
>           by mx.google.com with ESMTPS id 15sm1318852fxm.2.2010.01.16.09.20.40
>           (version=TLSv1/SSLv3 cipher=RC4-MD5);
>           Sat, 16 Jan 2010 09:20:41 -0800 (PST)
>   From: Rodolfo Medina <rodolfo.medina@gmail.com>
>   Date: Sat, 16 Jan 2010 18:21:18 +0000
>                          ^^^^^^^^^^^^^^
>                                 |
>
>                                 this is wrong
>
> 09:20:41 -0800 equals 17:20:41 +0000, not 18:21:18 +0000.  The friend suggests
> that my time zone "+0000" should be "+0100" i.e.  CET.
>
> Can anybody suggest how I can recover this?



Andrei Popescu <andreimpopescu@gmail.com> writes:

> To set the timezone it should be enough to do
>
> dpkg-reconfigure tzdata
>
> ...but,
>
> - do you have Windows installed (and used) on the same computer?
> - is the BIOS clock set to UTC or local time?
> - what does you system think about it? (check UTC= setting in 
>   /etc/default/rcS)
>
> For a linux-only computer it is recommended you set UTC=yes, make sure 
> your BIOS clock is set to UTC and configure the timezone via the above 
> command.
>
> OTOH Windows expects the BIOS to be set to *local* time, so you would 
> want to set UTC=no, but you still have to set the correct timezone 
> because internally Linux is using UTC.
>
> If you make changes to the clock you might also experience issues on the 
> next (re)boot, because e2fsck doesn't like it if the last mount time of 
> a filesystem appears to be in the future. This is easily fixed with a
>
> fsck.ext3 /dev/sdXY
>
> from the "maintenance shell", but you should be prepared for it ;)



Thanks!

With `dpkg-reconfigure tzdata' it came out that my local time was London,
wheras it should be Rome.  I changed it.  I have also a Windows partition, so I
let UTC=no in /etc/default/rcS, as you suggested.  I rebooted and no problem
seemed to occur.

Now I sent a test message to myself, and these are the headers:


X-From-Line: rodolfo.medina@gmail.com  Tue Jan 19 20:16:54 2010
Return-Path: <rodolfo.medina@gmail.com>
Received: from hda6-hyundai ([151.81.20.42])
        by mx.google.com with ESMTPS id 13sm1649564bwz.10.2010.01.19.11.17.03
        (version=TLSv1/SSLv3 cipher=RC4-MD5);
        Tue, 19 Jan 2010 11:17:04 -0800 (PST)
From: Rodolfo Medina <rodolfo.medina@gmail.com>
To: rodolfo.medina@gmail.com
Subject: test3
Date: Tue, 19 Jan 2010 20:16:54 +0100


Is the problem solved now?

Thanks,
Rodolfo