[ntp:questions] question about DST

Bill Unruh unruh at physics.ubc.ca
Sat May 31 16:20:32 UTC 2008


On Sat, 31 May 2008, Asrai khn wrote:

> Its mix of OS Linux, Unix (sun, freebsd) and yes we also have some hardware
> of Lucent (MaxTNT) that running thers OS TAOS,
>
> As i said we dont' have this DST before and  its first time government is
> implementing it (coz of sever power crises)

Which country?

>
> So you thinks its not good practice to change system clock with 'date'
> command?  by forwarding it by one hour.

You can do anything you want. BUt on a linux/Unix system it is all handled
by the zoneinfo files. Just update your tzdata file and forget about it.

>
> I thinks to change it manually will also requires me to disable ntp sync
> otherwise machine will correct its time again.

Yes. So why do it. Just download the file and install it and be happy.


>
> regards.
>
> On Sat, May 31, 2008 at 1:36 AM, Kevin Oberman <oberman at es.net> wrote:
>
>>> From: Unruh <unruh-spam at physics.ubc.ca>
>>> Date: Fri, 30 May 2008 20:10:19 GMT
>>> Sender: questions-bounces+oberman=es.net at lists.ntp.org
>>>
>>>
>>> asraikhn at gmail.com (Asrai khn) writes:
>>>
>>>> Note: please reply to me direct as i am not subscribe to mailing list.
>>>
>>> It is not a mailing list, it is a news group. Keep coming back for
>>> information.
>>
>> No. It is both a mailing list and a news group. A great many of us have
>> abandoned usenet and read this via the mail list. I assume Asrai sent
>> his question to the mail list. You read it via the news group. Since you
>> ignored his request to copy him, he will never see your response of:
>>
>>> 1. Is it possible to adjust only the ntp server for DST thing and let all
>>> other machines automatically get the new time from ntp server?
>>
>> No. NTP knows nothing about DST. It operates in UTC.
>>
>>
>>
>>> 1.1. If not do I have to adjust all machine clocks manually?
>>
>>
>> What operating system?
>>
>> --
>> R. Kevin Oberman, Network Engineer
>> Energy Sciences Network (ESnet)
>> Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab)
>> E-mail: oberman at es.net                  Phone: +1 510 486-8634
>> Key fingerprint:059B 2DDF 031C 9BA3 14A4  EADA 927D EBB3 987B 3751
>>
>

-- 
William G. Unruh   |  Canadian Institute for|     Tel: +1(604)822-3273
Physics&Astronomy  |     Advanced Research  |     Fax: +1(604)822-5324
UBC, Vancouver,BC  |   Program in Cosmology |     unruh at physics.ubc.ca
Canada V6T 1Z1     |      and Gravity       |  www.theory.physics.ubc.ca/



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