leapseconds revision 325324
1218885Sdim# Allowance for leap seconds added to each time zone file. 2218885Sdim 3218885Sdim# This file is in the public domain. 4218885Sdim 5218885Sdim# This file is generated automatically from the data in the public-domain 6218885Sdim# leap-seconds.list file, which is copied from: 7218885Sdim# ftp://ftp.nist.gov/pub/time/leap-seconds.list 8218885Sdim# For more about leap-seconds.list, please see 9218885Sdim# The NTP Timescale and Leap Seconds 10218885Sdim# https://www.eecis.udel.edu/~mills/leap.html 11218885Sdim 12218885Sdim# The International Earth Rotation and Reference Systems Service 13218885Sdim# periodically uses leap seconds to keep UTC to within 0.9 s of UT1 14218885Sdim# (which measures the true angular orientation of the earth in space); see 15218885Sdim# Levine J. Coordinated Universal Time and the leap second. 16218885Sdim# URSI Radio Sci Bull. 2016;89(4):30-6. doi:10.23919/URSIRSB.2016.7909995 17218885Sdim# http://ieeexplore.ieee.org/document/7909995/ 18218885Sdim# There were no leap seconds before 1972, because the official mechanism 19218885Sdim# accounting for the discrepancy between atomic time and the earth's rotation 20218885Sdim# did not exist until the early 1970s. 21218885Sdim 22218885Sdim# The correction (+ or -) is made at the given time, so lines 23218885Sdim# will typically look like: 24218885Sdim# Leap YEAR MON DAY 23:59:60 + R/S 25218885Sdim# or 26218885Sdim# Leap YEAR MON DAY 23:59:59 - R/S 27218885Sdim 28218885Sdim# If the leapsecond is Rolling (R) the given time is local time. 29218885Sdim# If the leapsecond is Stationary (S) the given time is UTC. 30252503Sandrew 31218885Sdim# Leap YEAR MONTH DAY HH:MM:SS CORR R/S 32218885SdimLeap 1972 Jun 30 23:59:60 + S 33218885SdimLeap 1972 Dec 31 23:59:60 + S 34218885SdimLeap 1973 Dec 31 23:59:60 + S 35218885SdimLeap 1974 Dec 31 23:59:60 + S 36218885SdimLeap 1975 Dec 31 23:59:60 + S 37218885SdimLeap 1976 Dec 31 23:59:60 + S 38218885SdimLeap 1977 Dec 31 23:59:60 + S 39218885SdimLeap 1978 Dec 31 23:59:60 + S 40218885SdimLeap 1979 Dec 31 23:59:60 + S 41218885SdimLeap 1981 Jun 30 23:59:60 + S 42218885SdimLeap 1982 Jun 30 23:59:60 + S 43218885SdimLeap 1983 Jun 30 23:59:60 + S 44218885SdimLeap 1985 Jun 30 23:59:60 + S 45218885SdimLeap 1987 Dec 31 23:59:60 + S 46218885SdimLeap 1989 Dec 31 23:59:60 + S 47218885SdimLeap 1990 Dec 31 23:59:60 + S 48218885SdimLeap 1992 Jun 30 23:59:60 + S 49218885SdimLeap 1993 Jun 30 23:59:60 + S 50218885SdimLeap 1994 Jun 30 23:59:60 + S 51218885SdimLeap 1995 Dec 31 23:59:60 + S 52218885SdimLeap 1997 Jun 30 23:59:60 + S 53218885SdimLeap 1998 Dec 31 23:59:60 + S 54221345SdimLeap 2005 Dec 31 23:59:60 + S 55221345SdimLeap 2008 Dec 31 23:59:60 + S 56218885SdimLeap 2012 Jun 30 23:59:60 + S 57218885SdimLeap 2015 Jun 30 23:59:60 + S 58218885SdimLeap 2016 Dec 31 23:59:60 + S 59218885Sdim 60218885Sdim# Updated through IERS Bulletin C54 61218885Sdim# File expires on: 28 June 2018 62218885Sdim