[tz] Positive leap second on 2015-06-30.

[Arthur David Olson]

For now it can be changed to "official defin[i]tion of UTC" or "official
[definition] of UTC" in the TZDB copy. (I'd go with the first; the second
causes less spell checker grief.)

    @dashdashado

On Wed, Jan 7, 2015 at 4:19 PM, Tim Parenti <tim at timtimeonline.com> wrote:

> Denis,
>
> This error was present in the leap-seconds.3629404800 file as provided by
> NIST.  I have copied Judah Levine on this message so that it might be fixed
> in their next version.
>
> On 7 January 2015 at 16:15, Denis Excoffier <iana at denis-excoffier.org>
> wrote:
>
>> On 2015-01-06 21:22, Tim Parenti wrote:
>>
>> > +#    Some systems implement leap seconds by amortizing the leap second
>> > +#    over the last few minutes of the day. The frequency of the local
>> > +#    clock is decreased (or increased) to realize the positive (or
>> > +#    negative) leap second. This method removes the time step described
>> > +#    above. Although the long-term behavior of the time scale is
>> correct
>> > +#    in this case, this method introduces an error during the
>> adjustment
>> > +#    period both in time and in frequency with respect to the official
>> > +#    defintion of UTC.
>>
>> s/defintion/definition/
>>
>> Regards,
>>
>> Denis Excoffier.
>>
>
>
>
> --
> Tim Parenti
>
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