--- leapseconds 2012-01-06 10:47:32.000000000 +0000 +++ leapseconds.new 2012-01-06 10:49:42.000000000 +0000 @@ -48,40 +48,53 @@ Leap 1998 Dec 31 23:59:60 + S Leap 2005 Dec 31 23:59:60 + S Leap 2008 Dec 31 23:59:60 + S +Leap 2012 Jun 30 23:59:60 + S -# INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) +# 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 29 +# Tel. : 33 (0) 1 40 51 22 26 # FAX : 33 (0) 1 40 51 22 91 -# Internet : services.iers@obspm.fr +# e-mail : services.iers@obspm.fr +# http://hpiers.obspm.fr/eop-pc # -# Paris, 2 February 2011 +# Paris, 5 January 2012 # -# Bulletin C 41 +# Bulletin C 43 # -# To authorities responsible -# for the measurement and -# distribution of time +# To authorities responsible +# for the measurement and +# distribution of time # -# INFORMATION ON UTC - TAI # -# NO positive leap second will be introduced at the end of June 2011. -# The difference between Coordinated Universal Time UTC and the -# International Atomic Time TAI is : +# UTC TIME STEP +# on the 1st of July 2012 # -# from 2009 January 1, 0h UTC, until further notice : UTC-TAI = -34 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. +# A positive leap second will be introduced at the end of June 2012. +# The sequence of dates of the UTC second markers will be: # -# Daniel GAMBIS -# Head -# Earth Orientation Center of the IERS -# Observatoire de Paris, France +# 2012 June 30, 23h 59m 59s +# 2012 June 30, 23h 59m 60s +# 2012 July 1, 0h 0m 0s +# +# The difference between UTC and the International Atomic Time TAI is: +# +# from 2009 January 1, 0h UTC, to 2012 July 1 0h UTC : UTC-TAI = - 34s +# from 2012 July 1, 0h UTC, until further notice : UTC-TAI = - 35s +# +# 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