| leapseconds (7858:a7c341f30747) | leapseconds (8462:60e3cdbe8cdf) |
|---|---|
| 1# 2# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3# 4# This code is free software; you can redistribute it and/or modify it 5# under the terms of the GNU General Public License version 2 only, as 6# published by the Free Software Foundation. Oracle designates this 7# particular file as subject to the "Classpath" exception as provided 8# by Oracle in the LICENSE file that accompanied this code. --- 6 unchanged lines hidden (view full) --- 15# 16# You should have received a copy of the GNU General Public License version 17# 2 along with this work; if not, write to the Free Software Foundation, 18# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19# 20# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21# or visit www.oracle.com if you need additional information or have any 22# questions. | 1# 2# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 3# 4# This code is free software; you can redistribute it and/or modify it 5# under the terms of the GNU General Public License version 2 only, as 6# published by the Free Software Foundation. Oracle designates this 7# particular file as subject to the "Classpath" exception as provided 8# by Oracle in the LICENSE file that accompanied this code. --- 6 unchanged lines hidden (view full) --- 15# 16# You should have received a copy of the GNU General Public License version 17# 2 along with this work; if not, write to the Free Software Foundation, 18# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19# 20# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21# or visit www.oracle.com if you need additional information or have any 22# questions. |
| 23# 24# <pre> 25# This file is in the public domain, so clarified as of 26# 2009-05-17 by Arthur David Olson. | |
| 27 28# Allowance for leapseconds added to each timezone file. 29 | 23 24# Allowance for leapseconds added to each timezone file. 25 |
| 26# This file is in the public domain. 27 28# This file is generated automatically from the data in the public-domain 29# leap-seconds.list file available from most NIST time servers. 30# If the URL <ftp://time.nist.gov/pub/leap-seconds.list> does not work, 31# you should be able to pick up leap-seconds.list from a secondary NIST server. 32# For more about leap-seconds.list, please see 33# The NTP Timescale and Leap Seconds 34# <http://www.eecis.udel.edu/~mills/leap.html>. 35 |
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| 30# The International Earth Rotation Service periodically uses leap seconds 31# to keep UTC to within 0.9 s of UT1 32# (which measures the true angular orientation of the earth in space); see 33# Terry J Quinn, The BIPM and the accurate measure of time, | 36# The International Earth Rotation Service periodically uses leap seconds 37# to keep UTC to within 0.9 s of UT1 38# (which measures the true angular orientation of the earth in space); see 39# Terry J Quinn, The BIPM and the accurate measure of time, |
| 34# Proc IEEE 79, 7 (July 1991), 894-905. | 40# Proc IEEE 79, 7 (July 1991), 894-905 <http://dx.doi.org/10.1109/5.84965>. |
| 35# There were no leap seconds before 1972, because the official mechanism 36# accounting for the discrepancy between atomic time and the earth's rotation 37# did not exist until the early 1970s. 38 39# The correction (+ or -) is made at the given time, so lines 40# will typically look like: 41# Leap YEAR MON DAY 23:59:60 + R/S 42# or 43# Leap YEAR MON DAY 23:59:59 - R/S 44 | 41# There were no leap seconds before 1972, because the official mechanism 42# accounting for the discrepancy between atomic time and the earth's rotation 43# did not exist until the early 1970s. 44 45# The correction (+ or -) is made at the given time, so lines 46# will typically look like: 47# Leap YEAR MON DAY 23:59:60 + R/S 48# or 49# Leap YEAR MON DAY 23:59:59 - R/S 50 |
| 45# If the leapsecond is Rolling (R) the given time is local time 46# If the leapsecond is Stationary (S) the given time is UTC | 51# If the leapsecond is Rolling (R) the given time is local time. 52# If the leapsecond is Stationary (S) the given time is UTC. |
| 47 48# Leap YEAR MONTH DAY HH:MM:SS CORR R/S 49Leap 1972 Jun 30 23:59:60 + S 50Leap 1972 Dec 31 23:59:60 + S 51Leap 1973 Dec 31 23:59:60 + S 52Leap 1974 Dec 31 23:59:60 + S 53Leap 1975 Dec 31 23:59:60 + S 54Leap 1976 Dec 31 23:59:60 + S --- 11 unchanged lines hidden (view full) --- 66Leap 1993 Jun 30 23:59:60 + S 67Leap 1994 Jun 30 23:59:60 + S 68Leap 1995 Dec 31 23:59:60 + S 69Leap 1997 Jun 30 23:59:60 + S 70Leap 1998 Dec 31 23:59:60 + S 71Leap 2005 Dec 31 23:59:60 + S 72Leap 2008 Dec 31 23:59:60 + S 73Leap 2012 Jun 30 23:59:60 + S | 53 54# Leap YEAR MONTH DAY HH:MM:SS CORR R/S 55Leap 1972 Jun 30 23:59:60 + S 56Leap 1972 Dec 31 23:59:60 + S 57Leap 1973 Dec 31 23:59:60 + S 58Leap 1974 Dec 31 23:59:60 + S 59Leap 1975 Dec 31 23:59:60 + S 60Leap 1976 Dec 31 23:59:60 + S --- 11 unchanged lines hidden (view full) --- 72Leap 1993 Jun 30 23:59:60 + S 73Leap 1994 Jun 30 23:59:60 + S 74Leap 1995 Dec 31 23:59:60 + S 75Leap 1997 Jun 30 23:59:60 + S 76Leap 1998 Dec 31 23:59:60 + S 77Leap 2005 Dec 31 23:59:60 + S 78Leap 2008 Dec 31 23:59:60 + S 79Leap 2012 Jun 30 23:59:60 + S |
| 74 75# INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) 76# 77# SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE 78# 79# 80# SERVICE DE LA ROTATION TERRESTRE 81# OBSERVATOIRE DE PARIS 82# 61, Av. de l'Observatoire 75014 PARIS (France) 83# Tel. : 33 (0) 1 40 51 22 26 84# FAX : 33 (0) 1 40 51 22 91 85# e-mail : (E-Mail Removed) 86# http://hpiers.obspm.fr/eop-pc 87# 88# Paris, 5 January 2012 89# 90# 91# Bulletin C 43 92# 93# To authorities responsible 94# for the measurement and 95# distribution of time 96# 97# 98# UTC TIME STEP 99# on the 1st of July 2012 100# 101# 102# A positive leap second will be introduced at the end of June 2012. 103# The sequence of dates of the UTC second markers will be: 104# 105# 2012 June 30, 23h 59m 59s 106# 2012 June 30, 23h 59m 60s 107# 2012 July 1, 0h 0m 0s 108# 109# The difference between UTC and the International Atomic Time TAI is: 110# 111# from 2009 January 1, 0h UTC, to 2012 July 1 0h UTC : UTC-TAI = - 34s 112# from 2012 July 1, 0h UTC, until further notice : UTC-TAI = - 35s 113# 114# Leap seconds can be introduced in UTC at the end of the months of December 115# or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every 116# six months, either to announce a time step in UTC or to confirm that there 117# will be no time step at the next possible date. 118# 119# 120# Daniel GAMBIS 121# Head 122# Earth Orientation Center of IERS 123# Observatoire de Paris, France | |