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MFV r287019: leapseconds from tzdata2015f.

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Xin LI 2015-08-22 07:40:51 +00:00
parent 92f6e93414 9c32761d58
commit dd53226c13
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=287020
1 changed files with 18 additions and 58 deletions
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contrib/tzdata/leapseconds
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@ -1,14 +1,20 @@
# <pre>
# This file is in the public domain, so clarified as of
# 2009-05-17 by Arthur David Olson.
# Allowance for leap seconds added to each time zone file.
# Allowance for leapseconds added to each timezone file.
# This file is in the public domain.
# The International Earth Rotation Service periodically uses leap seconds
# to keep UTC to within 0.9 s of UT1
# This file is generated automatically from the data in the public-domain
# leap-seconds.list file available from most NIST time servers.
# If the URL <ftp://time.nist.gov/pub/leap-seconds.list> does not work,
# you should be able to pick up leap-seconds.list from a secondary NIST server.
# For more about leap-seconds.list, please see
# The NTP Timescale and Leap Seconds
# http://www.eecis.udel.edu/~mills/leap.html
# The International Earth Rotation and Reference Systems Service
# periodically uses leap seconds to keep UTC to within 0.9 s of UT1
# (which measures the true angular orientation of the earth in space); see
# Terry J Quinn, The BIPM and the accurate measure of time,
# Proc IEEE 79, 7 (July 1991), 894-905.
# Proc IEEE 79, 7 (July 1991), 894-905 <http://dx.doi.org/10.1109/5.84965>.
# There were no leap seconds before 1972, because the official mechanism
# accounting for the discrepancy between atomic time and the earth's rotation
# did not exist until the early 1970s.
@ -19,8 +25,8 @@
# or
# Leap YEAR MON DAY 23:59:59 - R/S
# If the leapsecond is Rolling (R) the given time is local time
# If the leapsecond is Stationary (S) the given time is UTC
# If the leapsecond is Rolling (R) the given time is local time.
# If the leapsecond is Stationary (S) the given time is UTC.
# Leap YEAR MONTH DAY HH:MM:SS CORR R/S
Leap 1972 Jun 30 23:59:60 + S
@ -48,53 +54,7 @@ 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
Leap 2015 Jun 30 23:59:60 + S
# 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 : (E-Mail Removed)
# http://hpiers.obspm.fr/eop-pc
#
# Paris, 5 January 2012
#
#
# Bulletin C 43
#
# To authorities responsible
# for the measurement and
# distribution of time
#
#
# UTC TIME STEP
# on the 1st of July 2012
#
#
# A positive leap second will be introduced at the end of June 2012.
# The sequence of dates of the UTC second markers will be:
#
# 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
# Updated through IERS Bulletin C50
# File expires on: 28 June 2016