[time-nuts] Fwd: Bulletin C number 49

Magnus Danielson magnus at rubidium.dyndns.org
Mon Jan 5 09:46:06 EST 2015


Fellow time-nuts,

We will have a leap-second this June.

Cheers,
Magnus

-------- Forwarded Message --------
Subject: Bulletin C number 49
Date: Mon, 05 Jan 2015 14:25:49 +0100
From: IERS EOP Product Center <services.iers at obspm.fr>
Reply-To: IERS EOP Product Center <services.iers at obspm.fr>
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 (0) 1 40 51 22 26
FAX       : 33 (0) 1 40 51 22 91
e-mail    : services.iers at obspm.fr
http://hpiers.obspm.fr/eop-pc

                                               Paris, 5 January 2015

                                               Bulletin C 49

  To authorities responsible for the measurement and distribution of 
time


                                    UTC TIME STEP
                             on the 1st of July 2015


  A positive leap second will be introduced at the end of June 2015.
  The sequence of dates of the UTC second markers will be:		
		
                           2015 June 30,     23h 59m 59s
                           2015 June 30,     23h 59m 60s
                           2015 July  1,      0h  0m  0s

  The difference between UTC and the International Atomic Time TAI is:

   from 2012 July 1,    0h UTC, to 2015 July 1  0h UTC  : UTC-TAI = - 35s
   from 2015 July 1,    0h UTC, until further notice    : UTC-TAI = - 36s



  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.


                                               Daniel Gambis
                                               Head
                                               Earth Orientation Center 
of IERS
                                               Observatoire de Paris, France




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