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Re: date command

From: Felix Joussein
Subject: Re: date command
Date: Fri, 01 Feb 2008 13:33:12 +0100
User-agent: Thunderbird (X11/20071220)

Hello James,

thank you for your brief answer.
Basically I am aware of what you said, but as I am operating an NTP
Server which get it's timescale directly from an ATOM clock via the
serial interface, which makes it to a STRATUM 1 server, I have to set
the leap second manually by date command or similar to push forward the
ntp-server timescale for this one second when ever the IERS announces a
leap second.
The prior system was running on a Red Hat 7.2 where the date command was
able to set the 60th second... unfortunately the version of the
coreutils which is shipped in debian/etch does not.
I'm helping myself now by using the old date command from the Red Hat
distribution which seams to work for my needs but never then less:
Why has a 8 year old version of date a feature, which it's actual
version doesn't have? I cannot imagine, that the code which is necessary
to set the 60th second would blow up the code that much, that the date
project-team decides to blow out that code...
I'm really confused about that fact!

Thank you for helping me with my problem.

many regards,

Felix Joussein

James Youngman schrieb:
> On Feb 1, 2008 8:24 AM, Jim Meyering <address@hidden> wrote:
>>> Basicaly the goal ist, to set back the time at a certain moment for 1
>>> Second. It's all about the leap-second which might be set every last
>>> second of the 31th of dec. or 30th of june...
>>> Doing this with the new date command the time is set back to 2 seconds
>>> rather then one... with the old date command using the minute's 60st
>>> second a step-back for one second is possible.
>>> Do you have any idea how this may happen?
> Leap seconds occur in UTC.   They are often handled by the kernel (if
> at all) and a common way to do this is to run an NTP client.    See
> also http://www.cis.udel.edu/~mills/leap.html
> It is normally not necessary to introduce a manual adjustment with
> "date" in order to maintain synchronisation.
> James.

mit freundlichen Grüßen

Felix Joussein

Integrated Network Design
Firma Felix Joussein

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