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make/data/tzdata/leapseconds
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*** 24,59 ****
# Allowance for leap seconds added to each time zone file.
# 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
# For more about leap-seconds.list, please see
# The NTP Timescale and Leap Seconds
! # 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.
# URSI Radio Sci Bull. 2016;89(4):30-6. doi:10.23919/URSIRSB.2016.7909995
! # http://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.
# 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
--- 24,60 ----
# Allowance for leap seconds added to each time zone file.
# This file is in the public domain.
# This file is generated automatically from the data in the public-domain
! # 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>.
# 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)
! # 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
! # <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.
# 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 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
Leap 1974 Dec 31 23:59:60 + S
Leap 1975 Dec 31 23:59:60 + S
*** 78,84 ****
Leap 2008 Dec 31 23:59:60 + S
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
--- 79,89 ----
Leap 2008 Dec 31 23:59:60 + S
Leap 2012 Jun 30 23:59:60 + S
Leap 2015 Jun 30 23:59:60 + S
Leap 2016 Dec 31 23:59:60 + S
! # POSIX timestamps for the data in this file:
! #updated 1467936000
! #expires 1561680000
!
! # Updated through IERS Bulletin C56
! # File expires on: 28 June 2019
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