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@@ -48,40 +48,54 @@ Leap 1997 Jun 30 23:59:60 + S
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Leap 1998 Dec 31 23:59:60 + S
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Leap 2005 Dec 31 23:59:60 + S
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Leap 2008 Dec 31 23:59:60 + S
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+Leap 2012 Jun 30 23:59:60 + S
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# INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS)
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#
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# SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE
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#
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+#
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# SERVICE DE LA ROTATION TERRESTRE
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# OBSERVATOIRE DE PARIS
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# 61, Av. de l'Observatoire 75014 PARIS (France)
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-# Tel. : 33 (0) 1 40 51 22 29
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+# Tel. : 33 (0) 1 40 51 22 26
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# FAX : 33 (0) 1 40 51 22 91
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-# Internet : services.iers@obspm.fr
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+# e-mail : (E-Mail Removed)
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+# http://hpiers.obspm.fr/eop-pc
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+#
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+# Paris, 5 January 2012
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#
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-# Paris, 2 February 2011
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#
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-# Bulletin C 41
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+# Bulletin C 43
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#
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# To authorities responsible
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# for the measurement and
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# distribution of time
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#
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-# INFORMATION ON UTC - TAI
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#
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-# NO positive leap second will be introduced at the end of June 2011.
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-# The difference between Coordinated Universal Time UTC and the
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-# International Atomic Time TAI is :
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+# UTC TIME STEP
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+# on the 1st of July 2012
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+#
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#
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-# from 2009 January 1, 0h UTC, until further notice : UTC-TAI = -34 s
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+# A positive leap second will be introduced at the end of June 2012.
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+# The sequence of dates of the UTC second markers will be:
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+#
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+# 2012 June 30, 23h 59m 59s
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+# 2012 June 30, 23h 59m 60s
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+# 2012 July 1, 0h 0m 0s
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+#
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+# The difference between UTC and the International Atomic Time TAI is:
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+#
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+# from 2009 January 1, 0h UTC, to 2012 July 1 0h UTC : UTC-TAI = - 34s
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+# from 2012 July 1, 0h UTC, until further notice : UTC-TAI = - 35s
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#
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# Leap seconds can be introduced in UTC at the end of the months of December
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-# or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every
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-# six months, either to announce a time step in UTC, or to confirm that there
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+# or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every
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+# six months, either to announce a time step in UTC or to confirm that there
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# will be no time step at the next possible date.
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#
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+#
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# Daniel GAMBIS
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-# Head
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-# Earth Orientation Center of the IERS
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+# Head
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+# Earth Orientation Center of IERS
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# Observatoire de Paris, France
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Arthur David Olson