[LEAPSECS] Fwd: Bulletin C number 49

[Richard B. Langley]

In case anyone didn't get this. Six month's warning.
-- Richard Langley

Begin forwarded message:
> From: IERS EOP Product Center <services.iers at obspm.fr>
> Subject: Bulletin C number 49
> Date: January 5, 2015 at 9:25:49 AM AST
> To: <bulc.iers at obspm.fr>
> Reply-To: IERS EOP Product Center <services.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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| Richard B. Langley                            E-mail: lang at unb.ca         |
| Geodetic Research Laboratory                  Web: http://gge.unb.ca/     |
| Dept. of Geodesy and Geomatics Engineering    Phone:    +1 506 453-5142   |
| University of New Brunswick                   Fax:      +1 506 453-4943   |
| Fredericton, N.B., Canada  E3B 5A3                                        |
|        Fredericton?  Where's that?  See: http://www.fredericton.ca/       |
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