| leapseconds (219411) | leapseconds (233445) |
|---|---|
| 1# <pre> | 1# <pre> |
| 2# @(#)leapseconds 8.11 | 2# @(#)leapseconds 8.13 |
| 3# This file is in the public domain, so clarified as of 4# 2009-05-17 by Arthur David Olson. 5 6# Allowance for leapseconds added to each timezone file. 7 8# The International Earth Rotation Service periodically uses leap seconds 9# to keep UTC to within 0.9 s of UT1 10# (which measures the true angular orientation of the earth in space); see --- 32 unchanged lines hidden (view full) --- 43Leap 1992 Jun 30 23:59:60 + S 44Leap 1993 Jun 30 23:59:60 + S 45Leap 1994 Jun 30 23:59:60 + S 46Leap 1995 Dec 31 23:59:60 + S 47Leap 1997 Jun 30 23:59:60 + S 48Leap 1998 Dec 31 23:59:60 + S 49Leap 2005 Dec 31 23:59:60 + S 50Leap 2008 Dec 31 23:59:60 + S | 3# This file is in the public domain, so clarified as of 4# 2009-05-17 by Arthur David Olson. 5 6# Allowance for leapseconds added to each timezone file. 7 8# The International Earth Rotation Service periodically uses leap seconds 9# to keep UTC to within 0.9 s of UT1 10# (which measures the true angular orientation of the earth in space); see --- 32 unchanged lines hidden (view full) --- 43Leap 1992 Jun 30 23:59:60 + S 44Leap 1993 Jun 30 23:59:60 + S 45Leap 1994 Jun 30 23:59:60 + S 46Leap 1995 Dec 31 23:59:60 + S 47Leap 1997 Jun 30 23:59:60 + S 48Leap 1998 Dec 31 23:59:60 + S 49Leap 2005 Dec 31 23:59:60 + S 50Leap 2008 Dec 31 23:59:60 + S |
| 51Leap 2012 Jun 30 23:59:60 + S |
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| 51 52# INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) 53# 54# SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE 55# | 52 53# INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) 54# 55# SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE 56# |
| 57# |
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| 56# SERVICE DE LA ROTATION TERRESTRE 57# OBSERVATOIRE DE PARIS 58# 61, Av. de l'Observatoire 75014 PARIS (France) | 58# SERVICE DE LA ROTATION TERRESTRE 59# OBSERVATOIRE DE PARIS 60# 61, Av. de l'Observatoire 75014 PARIS (France) |
| 59# Tel. : 33 (0) 1 40 51 22 29 | 61# Tel. : 33 (0) 1 40 51 22 26 |
| 60# FAX : 33 (0) 1 40 51 22 91 | 62# FAX : 33 (0) 1 40 51 22 91 |
| 61# Internet : services.iers@obspm.fr | 63# e-mail : (E-Mail Removed) 64# http://hpiers.obspm.fr/eop-pc |
| 62# | 65# |
| 63# Paris, 2 February 2011 | 66# Paris, 5 January 2012 |
| 64# | 67# |
| 65# Bulletin C 41 | |
| 66# | 68# |
| 69# Bulletin C 43 70# |
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| 67# To authorities responsible 68# for the measurement and 69# distribution of time 70# | 71# To authorities responsible 72# for the measurement and 73# distribution of time 74# |
| 71# INFORMATION ON UTC - TAI | |
| 72# | 75# |
| 73# NO positive leap second will be introduced at the end of June 2011. 74# The difference between Coordinated Universal Time UTC and the 75# International Atomic Time TAI is : | 76# UTC TIME STEP 77# on the 1st of July 2012 |
| 76# | 78# |
| 77# from 2009 January 1, 0h UTC, until further notice : UTC-TAI = -34 s | |
| 78# | 79# |
| 80# A positive leap second will be introduced at the end of June 2012. 81# The sequence of dates of the UTC second markers will be: 82# 83# 2012 June 30, 23h 59m 59s 84# 2012 June 30, 23h 59m 60s 85# 2012 July 1, 0h 0m 0s 86# 87# The difference between UTC and the International Atomic Time TAI is: 88# 89# from 2009 January 1, 0h UTC, to 2012 July 1 0h UTC : UTC-TAI = - 34s 90# from 2012 July 1, 0h UTC, until further notice : UTC-TAI = - 35s 91# |
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| 79# Leap seconds can be introduced in UTC at the end of the months of December | 92# Leap seconds can be introduced in UTC at the end of the months of December |
| 80# or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every 81# six months, either to announce a time step in UTC, or to confirm that there | 93# or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every 94# six months, either to announce a time step in UTC or to confirm that there |
| 82# will be no time step at the next possible date. 83# | 95# will be no time step at the next possible date. 96# |
| 97# |
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| 84# Daniel GAMBIS | 98# Daniel GAMBIS |
| 85# Head 86# Earth Orientation Center of the IERS | 99# Head 100# Earth Orientation Center of IERS |
| 87# Observatoire de Paris, France | 101# Observatoire de Paris, France |