[LEAPSECS] [updated] Bulletin C 51: No leap second in June 2016, but new leap second file

[Martin Burnicki]

Martin Burnicki wrote:
> The International Earth rotation Service (IERS) has just published
> bulletin C 51, announcing that *no* leap second will be introduced at
> the end of June 2016:
> ftp://hpiers.obspm.fr/iers/bul/bulc/bulletinc.dat
> 
> The IERS now also makes a leap second file available for use with NTP:
> https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list
> 
> This new file has the expiration date set to 28 December 2016, so users
> who have configured ntpd to use the leap second file should upgrade
> their local copy of the file.

Unfortunately it turned out that the original version of the IERS leap
second file only had the human readable expiration date set to 28
December 2016, while the machine readable time stamp which is evaluated
by ntpd was 30 September 2016 only.

This has been fixed now, and and a fixed version where both dates are
consistently 28 December 2016 has been published:
https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.3661632000
https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list

where the latter is just a symbolic link to the first file, in order to
be able to access the file always under the same name.

> The leap second file does not only announce leap seconds, it also
> provides ntpd and thus the OS kernel with the current TAI/UTC offset,
> which is helpful for applications working with TAI.

Martin
-- 
Martin Burnicki

Senior Software Engineer

MEINBERG Funkuhren GmbH & Co. KG
Email: martin.burnicki at meinberg.de
Phone: +49 (0)5281 9309-14
Fax: +49 (0)5281 9309-30

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