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| author | Roland McGrath <roland@gnu.org> | 1995-02-18 01:27:10 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 1995-02-18 01:27:10 +0000 |
| commit | 28f540f45bbacd939bfd07f213bcad2bf730b1bf (patch) | |
| tree | 15f07c4c43d635959c6afee96bde71fb1b3614ee /time/leapseconds | |
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initial import
Diffstat (limited to 'time/leapseconds')
| -rw-r--r-- | time/leapseconds | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/time/leapseconds b/time/leapseconds new file mode 100644 index 0000000000..d610692f94 --- /dev/null +++ b/time/leapseconds @@ -0,0 +1,41 @@ +# @(#)leapseconds 7.7 + +# 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 TAI (atomic time); 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 GMT + +# 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 |