[tz] Fwd: Bulletin C number 57

Marshall Eubanks marshall.eubanks at gmail.com
Mon Jan 7 18:48:14 UTC 2019


The IERS is not furloughed, so why isn't this on their website?

https://www.iers.org/IERS/EN/Publications/Bulletins/bulletins.html


On Mon, Jan 7, 2019 at 11:28 AM Tim Parenti <tim at timtimeonline.com> wrote:
>
> FYI, per IERS Bulletin C57, there will be no leap second on 2019-06-30.
>
> Unfortunately, NIST is affected by the partial shutdown of the US government which has been ongoing since 2018-12-22 00:00 -05, so most of their website is unavailable, meaning it will likely be some time before they publish an updated leap-seconds.list.  But since the current NIST file doesn't expire until 2019-06-28, we've got some time before we have to deal with that.
>
> Last we had left the problem of being able to take the equivalent file directly from the IERS at https://hpiers.obspm.fr/iers/bul/bulc/ntp/leap-seconds.list, some lines had been added to https://hpiers.obspm.fr/iers/bul/bulc/README on 2017-04-11, but the exact text did not make any assertions about surrounding files, and we would prefer the notice be added to leap-seconds.list itself.  (There are a few other typos therein which I spotted as well.)
>
> See:
> https://mm.icann.org/pipermail/tz/2017-April/024990.html
> https://mm.icann.org/pipermail/tz/2017-April/024988.html
>
> In light of the current US/NIST situation, it would be helpful to re-energize these efforts.  Happy to help Christian and others come up with something workable.
>
> --
> Tim Parenti
>
>
> ---------- Forwarded message ---------
> From: IERS EOP Product Center <iers.eoppc at obspm.fr>
> Date: Mon, 7 Jan 2019 at 10:56
> Subject: Bulletin C number 57
> To: <bulc.iers at obspm.fr>
>
>
>
>
>
>      INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS)
>
> SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE
>
>
> SERVICE DE LA ROTATION TERRESTRE DE L'IERS
> OBSERVATOIRE DE PARIS
> 61, Av. de l'Observatoire 75014 PARIS (France)
> Tel.      : +33 1 40 51 23 35
> e-mail    : services.iers at obspm.fr
> http://hpiers.obspm.fr/eop-pc
>
>
>                                               Paris, 07 January 2019
>
>
>                                               Bulletin C 57
>
>                                               To authorities responsible
>                                               for the measurement and
>                                               distribution of time
>
>
>
>                           INFORMATION ON UTC - TAI
>
>
>  NO leap second will be introduced at the end of June 2019.
>  The difference between Coordinated Universal Time UTC and the
>  International Atomic Time TAI is :
>
>      from 2017 January 1, 0h UTC, until further notice : UTC-TAI = -37 s
>
>  Leap seconds can be introduced in UTC at the end of the months of December
>  or June,  depending on the evolution of UT1-TAI. Bulletin C is mailed every
>  six months, either to announce a time step in UTC, or to confirm that there
>  will be no time step at the next possible date.
>
>
>                                             Christian BIZOUARD
>                                             Director
>                                             Earth Orientation Center of IERS
>                                             Observatoire de Paris, France
>


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