1# @(#)leapseconds 7.11 |
2 3# Allowance for leapseconds added to each timezone file. 4 5# The International Earth Rotation Service periodically uses leap seconds 6# to keep UTC to within 0.9 s of TAI (atomic time); see 7# Terry J Quinn, The BIPM and the accurate measure of time, 8# Proc IEEE 79, 7 (July 1991), 894-905. 9# There were no leap seconds before 1972, because the official mechanism 10# accounting for the discrepancy between atomic time and the earth's rotation 11# did not exist until the early 1970s. 12 13# The correction (+ or -) is made at the given time, so lines 14# will typically look like: 15# Leap YEAR MON DAY 23:59:60 + R/S 16# or 17# Leap YEAR MON DAY 23:59:59 - R/S 18 19# If the leapsecond is Rolling (R) the given time is local time |
20# If the leapsecond is Stationary (S) the given time is UTC |
21 22# Leap YEAR MONTH DAY HH:MM:SS CORR R/S 23Leap 1972 Jun 30 23:59:60 + S 24Leap 1972 Dec 31 23:59:60 + S 25Leap 1973 Dec 31 23:59:60 + S 26Leap 1974 Dec 31 23:59:60 + S 27Leap 1975 Dec 31 23:59:60 + S 28Leap 1976 Dec 31 23:59:60 + S --- 16 unchanged lines hidden --- |