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Diffstat (limited to 'misc/flot/examples/axes-time-zones/tz/leapseconds')
| -rw-r--r-- | misc/flot/examples/axes-time-zones/tz/leapseconds | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/misc/flot/examples/axes-time-zones/tz/leapseconds b/misc/flot/examples/axes-time-zones/tz/leapseconds new file mode 100644 index 0000000..5b5c70e --- /dev/null +++ b/misc/flot/examples/axes-time-zones/tz/leapseconds @@ -0,0 +1,100 @@ +# <pre> +# This file is in the public domain, so clarified as of +# 2009-05-17 by Arthur David Olson. + +# Allowance for leapseconds added to each timezone file. + +# The International Earth Rotation 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. +# 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. + +# The correction (+ or -) is made at the given time, so lines +# will typically look like: +# Leap YEAR MON DAY 23:59:60 + R/S +# 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 + +# Leap YEAR MONTH DAY HH:MM:SS CORR R/S +Leap 1972 Jun 30 23:59:60 + S +Leap 1972 Dec 31 23:59:60 + S +Leap 1973 Dec 31 23:59:60 + S +Leap 1974 Dec 31 23:59:60 + S +Leap 1975 Dec 31 23:59:60 + S +Leap 1976 Dec 31 23:59:60 + S +Leap 1977 Dec 31 23:59:60 + S +Leap 1978 Dec 31 23:59:60 + S +Leap 1979 Dec 31 23:59:60 + S +Leap 1981 Jun 30 23:59:60 + S +Leap 1982 Jun 30 23:59:60 + S +Leap 1983 Jun 30 23:59:60 + S +Leap 1985 Jun 30 23:59:60 + S +Leap 1987 Dec 31 23:59:60 + S +Leap 1989 Dec 31 23:59:60 + S +Leap 1990 Dec 31 23:59:60 + S +Leap 1992 Jun 30 23:59:60 + S +Leap 1993 Jun 30 23:59:60 + S +Leap 1994 Jun 30 23:59:60 + S +Leap 1995 Dec 31 23:59:60 + S +Leap 1997 Jun 30 23:59:60 + S +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) +# +# 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 |