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    UTC Leap Second Announced (fwd)
    From: Richard B. Langley
    Date: 2005 Jul 4, 11:03 -0300

    FYI.
    -- Richard Langley
       Professor of Geodesy and Precision Navigation
    
    ===============================================================================
     Richard B. Langley                            E-mail: lang@unb.ca
     Geodetic Research Laboratory                  Web: http://www.unb.ca/GGE/
     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.city.fredericton.nb.ca/
    ===============================================================================
    
    ---------- Forwarded message ----------
    Date: Mon, 4 Jul 2005 10:55:14 -0300
    From: Richard Langley 
    To: CANSPACE@listserv.unb.ca
    Subject: UTC Leap Second Announced
    
    [[Note that the difference between UTC and GPS Time will increase from 13 to
    14 seconds when the UTC leap second is implemented. This will be the first
    leap second since January 1999. -- R.B.L.]]
    
    
          INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS)
    
          SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE
                                       REFERENCE
    
     SERVICE DE LA ROTATION TERRESTRE
     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@obspm.fr
     http://hpiers.obspm.fr/eop-pc
    
                                                   Paris, 4 July 2005
    
                                                   Bulletin C 30
    
      To authorities responsible for the measurement and distribution of time
    
    
                                        UTC TIME STEP
                                 on the 1st of January 2006
    
    
      A positive leap second will be introduced at the end of December 2005.
      The sequence of dates of the UTC second markers will be:
    
                               2005 December 31,     23h 59m 59s
                               2005 December 31,     23h 59m 60s
                               2006 January   1,      0h  0m  0s
    
      The difference between UTC and the International Atomic Time TAI is:
    
       from 1999 January 1, 0h UTC, to 2006 January 1  0h UTC  : UTC-TAI = - 32s
       from 2006 January 1, 0h UTC, until further notice       : UTC-TAI = - 33s
    
      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
    
    [To unsubscribe from CANSPACE, send the following message to  
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