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

Levine, Judah Dr. judah.levine at nist.gov
Thu Jan 8 18:40:32 UTC 2015

   Thanks for the note about the typo. It is in a comment line and has no effect on the data. It is a significant job to make and document the change and to push it out to all of our servers, so I probably won't correct the error for now.

Best wishes,

Judah Levine
Time and Frequency Division
NIST Boulder

Sent from my iPad

On Jan 7, 2015, at 2:19 PM, "Tim Parenti" <tim at timtimeonline.com<mailto:tim at timtimeonline.com>> wrote:


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<mailto: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.



Denis Excoffier.

Tim Parenti
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