[gentoo-user] Daylight savings time

[gentoo-user] Daylight savings time

[James]

Hello,

In my /etc/conf.d/clock file I have these relevant settings:
CLOCK="local"
TIMEZONE="America/New_York"
CLOCK_SYSTOHC="yes"

it's a dual boot (XP & gentoo) workstation.

I had to set the time manually to adjust for the 1 hour
shift. Shouldn't this be automatic?

What did I miss?



James


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[gentoo-user] Re: Daylight savings time

[James]

Shawn Haggett <podge <at> podgeweb.com> writes:


> > In my /etc/conf.d/clock file I have these relevant settings:
> > CLOCK="local"
> > TIMEZONE="America/New_York"
> > CLOCK_SYSTOHC="yes"

> Is the /etc/localtime file correct? i.e.:

> $ cp /usr/share/zoneinfo/America/New_York /etc/localtime

-rw-r--r--  1 root root   3519 Nov  5 17:39 localtime
-rw-r--r-- 3 root root 3519 Nov  5 17:39 /usr/share/zoneinfo/America/New_York

Yes.


Any other ideas?
Maybe I need to 'reemerge' something?


James

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Re: [gentoo-user] Daylight savings time

[Dan Farrell]

On Thu, 8 Nov 2007 00:16:46 +0000 (UTC)
James <wireless@tampabay.rr.com> wrote:

> Hello,
> 
> In my /etc/conf.d/clock file I have these relevant settings:
> CLOCK="local"
> TIMEZONE="America/New_York"
> CLOCK_SYSTOHC="yes"
> 
> it's a dual boot (XP & gentoo) workstation.
> 
> I had to set the time manually to adjust for the 1 hour
> shift. Shouldn't this be automatic?
> 

> 
> 
> 
> James
> 
> 
All my gentoos switched over just fine.  
> What did I miss?

I don't know, but I'm surprised to hear about this.  I thought we all
figured it out last spring.  The gentoo clock stuff should have been
updated long ago.  
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Re: [gentoo-user] Daylight savings time

[Philip Webb]

071108 James wrote:
> In my /etc/conf.d/clock file I have these relevant settings:
>   CLOCK="local"

That sb "utc".

>   TIMEZONE="America/New_York"
>   CLOCK_SYSTOHC="yes"
> it's a dual boot (XP & gentoo) workstation.

However, M$ Windows may insist on changing the time on its own,
so you may find it happens twice.

> I had to set the time manually to adjust for the 1 hour shift.
> Shouldn't this be automatic?  What did I miss?

HTH

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Re: [gentoo-user] Daylight savings time

[felix]

On Thu, Nov 08, 2007 at 02:35:06AM -0500, Philip Webb wrote:
> 071108 James wrote:
> > In my /etc/conf.d/clock file I have these relevant settings:
> >   CLOCK="local"
> 
> That sb "utc".

I have heard that Windows expects the hardware clock to be in local
time, including daylight savings adjustments.  Presumably Windows
maintains it that way.

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Re: [gentoo-user] Daylight savings time

[Uwe Thiem]

On 08 November 2007, felix@crowfix.com wrote:
> On Thu, Nov 08, 2007 at 02:35:06AM -0500, Philip Webb wrote:
> > 071108 James wrote:
> > > In my /etc/conf.d/clock file I have these relevant settings:
> > >   CLOCK="local"
> >
> > That sb "utc".
>
> I have heard that Windows expects the hardware clock to be in local
> time, including daylight savings adjustments.  Presumably Windows
> maintains it that way.

True. So you should go with "local" if the box is a dual boot one.

Uwe

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Re: [gentoo-user] Re: Daylight savings time

[Roger Mason]

James <wireless@tampabay.rr.com> writes:

>
> Any other ideas?
> Maybe I need to 'reemerge' something?
>

timezone-data?

Cheers,
Roger
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Re: [gentoo-user] Re: Daylight savings time

[Eric Martin]

James wrote:
> Shawn Haggett <podge <at> podgeweb.com> writes:
>
>
>   
>>> In my /etc/conf.d/clock file I have these relevant settings:
>>> CLOCK="local"
>>> TIMEZONE="America/New_York"
>>> CLOCK_SYSTOHC="yes"
>>>       
>
>   
>> Is the /etc/localtime file correct? i.e.:
>>     
>
>   
>> $ cp /usr/share/zoneinfo/America/New_York /etc/localtime
>>     
>
> -rw-r--r--  1 root root   3519 Nov  5 17:39 localtime
> -rw-r--r-- 3 root root 3519 Nov  5 17:39 /usr/share/zoneinfo/America/New_York
>
> Yes.
>
>
> Any other ideas?
> Maybe I need to 'reemerge' something?
>
>
> James
>
>   

Why copy?  when stuff gets updated you'll have to copy again.  I'd
suggest making a symlink.  Also, I see the timestamps and sizes are the
same, but are the md5's the same?  If not, these aren't the same file. 
</random longshot suggestion>
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Re: [gentoo-user] Re: Daylight savings time

[Albert Hopkins]

On Thu, 2007-11-08 at 17:29 -0500, Eric Martin wrote:

> Why copy?  when stuff gets updated you'll have to copy again.  I'd
> suggest making a symlink.  Also, I see the timestamps and sizes are the
> same, but are the md5's the same?  If not, these aren't the same file. 
> </random longshot suggestion>

Copy is what the emerge does. So when it's updated you get the fresh one
for free.

Actually, originally it was (suggested) that localtime was a symlink.
This was later changed.  The reasoning for the change are as follows.

/etc/init.d/clock is run pretty early in the init process; before all
filesystems in /etc/fstab are mounted.  If /usr/share/zoneinfo is on a
filesystem that is not mounted when /etc/init.d/clock is run then it
will fail and ugly things will happen.  Therefore it's suggested what
instead of a symlink /etc/localtime should be a physical file on the
(root) filesystem.

Probably for most people this is not an issue but apparently it was for
some.

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[gentoo-user] Re: Daylight savings time

[James]

Albert Hopkins <marduk <at> letterboxes.org> writes:
 

> /etc/init.d/clock is run pretty early in the init process; before all
> filesystems in /etc/fstab are mounted.  If /usr/share/zoneinfo is on a
> filesystem that is not mounted when /etc/init.d/clock is run then it
> will fail and ugly things will happen.  Therefore it's suggested what
> instead of a symlink /etc/localtime should be a physical file on the
> (root) filesystem.

OK,

I I re-emerge 'timezone-data' and just wait until spring to see if there
is a problem?


James




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[gentoo-user] Re: Daylight savings time

[James]

Vaeth <vaeth <at> mathematik.uni-wuerzburg.de> writes:


> Only if you run CLOCK=UTC the shift is guaranteed to work in any case
> (of course, unless another program like windows interferes).


Well 'local' did not work, so I'm going to set it to UTC and see what happens
in the spring.


James



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[gentoo-user] Re: Daylight savings time

[Teng Wang]

I suggest you install ntpd, which will sync time with ntp server. And
I dont think set CLOCK="UTC" is a good idea. If you are using WINXP,
it will change your clock to local always.

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Re: [gentoo-user] Re: Daylight savings time

[Roger Mason]

Hi James,

James <wireless@tampabay.rr.com> writes:


> I I re-emerge 'timezone-data' and just wait until spring to see if there
> is a problem?

Here is the procedure I used last spring (you'll need to set the
TIMEZONE according to your location:

(1) Sync. (perhaps not required if portage is fairly up to date)

(2) emerge timezone-data (should be >= 2006p)

(3) set TIMEZONE="Canada/Newfoundland" in /etc/conf.d/clock (adjust
   for your local time zone).

(4) rm /etc/localtime && cp /usr/share/zoneinfo/Canada/Newfoundland
   /etc/localtime (adjust for your local time zone).

(5) Check: zdump -v /etc/localtime | grep 2007.
   For timezone-data = 2007c it shows:

/etc/localtime  Sun Mar 11 03:30:59 2007 UTC = Sun Mar 11 00:00:59
2007 NST isdst=0
/etc/localtime  Sun Mar 11 03:31:00 2007 UTC = Sun Mar 11 01:01:00
2007 NDT isdst=1
/etc/localtime  Sun Nov  4 02:30:59 2007 UTC = Sun Nov  4 00:00:59
2007 NDT isdst=1
/etc/localtime  Sun Nov  4 02:31:00 2007 UTC = Sat Nov  3 23:01:00
2007 NST isdst=0

There was a thread on this last March: [gentoo-user] Problems after
DST change

Hope this helps,

Roger
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