leapseconds revision 2742 
1# @(#)leapseconds	7.7
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 GMT
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
29Leap	1977	Dec	31	23:59:60	+	S
30Leap	1978	Dec	31	23:59:60	+	S
31Leap	1979	Dec	31	23:59:60	+	S
32Leap	1981	Jun	30	23:59:60	+	S
33Leap	1982	Jun	30	23:59:60	+	S
34Leap	1983	Jun	30	23:59:60	+	S
35Leap	1985	Jun	30	23:59:60	+	S
36Leap	1987	Dec	31	23:59:60	+	S
37Leap	1989	Dec	31	23:59:60	+	S
38Leap	1990	Dec	31	23:59:60	+	S
39Leap	1992	Jun	30	23:59:60	+	S
40Leap	1993	Jun	30	23:59:60	+	S
41Leap	1994	Jun	30	23:59:60	+	S
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