[190597] in North American Network Operators' Group

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Re: Leap Second planned for 2016

daemon@ATHENA.MIT.EDU (Mikael Abrahamsson)
Sun Jul 10 12:37:07 2016

X-Original-To: nanog@nanog.org
Date: Sun, 10 Jul 2016 18:37:02 +0200 (CEST)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: Saku Ytti <saku@ytti.fi>
In-Reply-To: <CAAeewD-p8w5M5neGMtT8qkE=2sBNyn2wUWUOqT22+31R_cmUig@mail.gmail.com>
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org

On Sun, 10 Jul 2016, Saku Ytti wrote:

> On 10 July 2016 at 00:12,  <Valdis.Kletnieks@vt.edu> wrote:
>> It doesn't help that the POSIX standard doesn't represent leap seconds
>> anyplace, so any elapsed time calculation that crosses a leap second
>> is guaranteed to be wrong....
>
> So how can we solve the problem? Immediately and long term?

Since one problem is that the leap second code isn't exercised regularily, 
I propose that each month there is a leap second either forward or 
backward. These forward/backward motions should be fudged to over time 
make sure that we stay pretty much correct.

If POSIX needs to be changed, then change it. By making leap second not a 
rare event, this would hopefully mean it'll get taken more serously and 
the code would receive wider testing than today.

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se

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