[LEAPSECS] final report of the UK leap seconds dialog

[Kevin Birth]

If one can read Japanese (which I can do with great difficulty and veeerrrry slowly), one notes that the official Japanese announcement refers to the IERS and the leap second policy, but it translates UTC 23:59:60 on June 30 into the local time of 8:59:60 on July 1.   So Japan follows the policy, but the policy does result in next leap second occurring on the morning of July 1 locally.

Cheers,

Kevin


________________________________________
From: LEAPSECS [leapsecs-bounces at leapsecond.com] on behalf of Warner Losh [imp at bsdimp.com]
Sent: Thursday, February 05, 2015 5:36 PM
To: stephenscott at videotron.ca; Leap Second Discussion List
Subject: Re: [LEAPSECS] final report of the UK leap seconds dialog

The leap second happens world wide in UTC at 23:59:60. Since all time zones follow UTC,
it is whatever time that is offset from UTC. Otherwise, the offset would no longer be fixed,
but variable for a few hours. While there isn’t a standard for this, I believe it follows trivially
from the definition of timezones.

I’ve never seen any jurisdiction that’s done it differently ever. That’s just the sort of thing that
people would bring up arguing against leap seconds because it would be insanely stupid to
do this.

I’m also pretty sure that a local time zone isn’t a local time scale in the strictest sense of
time scale. Again, I don’t have a reference to site for this.

Warner

> On Feb 5, 2015, at 2:37 PM, Stephen Scott <stephenscott at videotron.ca> wrote:
>
> Hello Kevin.
>
> The information specifying that for Japan the next Leap Second will be applied Wednesday, July 1, at 9:00. is interesting in that this is the first official policy on when the Leap second shall be applied to a local timescale. Maybe I have been looking in teh wrong places.
> This is a local decision for a local time.
>  I am not aware of any international standards that touch the subject.
> I would be interested in learning about other jurisdictions that may have published a policy.
>
> Stephen Scott
>
> On 2015-02-05 09:35, Kevin Birth wrote:
>> Wednesday, July 1, at 9:00.
>
>
>
>
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>
>
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