diff options
Diffstat (limited to 'contrib/tzdata/leapseconds')
| -rw-r--r-- | contrib/tzdata/leapseconds | 31 |
1 files changed, 18 insertions, 13 deletions
diff --git a/contrib/tzdata/leapseconds b/contrib/tzdata/leapseconds index 358e741..148aa8e 100644 --- a/contrib/tzdata/leapseconds +++ b/contrib/tzdata/leapseconds @@ -3,21 +3,25 @@ # This file is in the public domain. # This file is generated automatically from the data in the public-domain -# leap-seconds.list file, which is copied from: -# ftp://ftp.nist.gov/pub/time/leap-seconds.list +# leap-seconds.list file, which can be copied from +# <ftp://ftp.nist.gov/pub/time/leap-seconds.list> +# or <ftp://ftp.boulder.nist.gov/pub/time/leap-seconds.list> +# or <ftp://tycho.usno.navy.mil/pub/ntp/leap-seconds.list>. # For more about leap-seconds.list, please see # The NTP Timescale and Leap Seconds -# https://www.eecis.udel.edu/~mills/leap.html +# <https://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 -# Levine J. Coordinated Universal Time and the leap second. +# (which measures the true angular orientation of the earth in space) +# and publishes leap second data in a copyrighted file +# <https://hpiers.obspm.fr/iers/bul/bulc/Leap_Second.dat>. +# See: Levine J. Coordinated Universal Time and the leap second. # URSI Radio Sci Bull. 2016;89(4):30-6. doi:10.23919/URSIRSB.2016.7909995 -# http://ieeexplore.ieee.org/document/7909995/ +# <https://ieeexplore.ieee.org/document/7909995>. # 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. +# did not exist. # The correction (+ or -) is made at the given time, so lines # will typically look like: @@ -25,10 +29,7 @@ # 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 +# If the leap second is Rolling (R) the given time is local time (unused here). Leap 1972 Jun 30 23:59:60 + S Leap 1972 Dec 31 23:59:60 + S Leap 1973 Dec 31 23:59:60 + S @@ -57,5 +58,9 @@ Leap 2012 Jun 30 23:59:60 + S Leap 2015 Jun 30 23:59:60 + S Leap 2016 Dec 31 23:59:60 + S -# Updated through IERS Bulletin C55 -# File expires on: 28 December 2018 +# POSIX timestamps for the data in this file: +#updated 1467936000 +#expires 1561680000 + +# Updated through IERS Bulletin C56 +# File expires on: 28 June 2019 |
