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authorGarrett Wollman <wollman@FreeBSD.org>1994-09-13 21:50:20 +0000
committerGarrett Wollman <wollman@FreeBSD.org>1994-09-13 21:50:20 +0000
commitd2746e980f4edb1ee1c5882e6531ca869843074f (patch)
treec30c081717d5d8a4ec4b962243c4c7d1bbcd6b53 /share/zoneinfo/leapseconds
downloadsrc-d2746e980f4edb1ee1c5882e6531ca869843074f.tar.gz
src-d2746e980f4edb1ee1c5882e6531ca869843074f.zip
Latest version of the timezone data files from Arthur David Olson, tovendor/tzdata/tzdata94f
go with the code imported yesterday. Obtained from: Arthur David Olson, ftp://elsie.nci.nih.gov/pub/tzdata94f.tar.gz
Notes
Notes: svn path=/vendor/tzdata/dist/; revision=2744 svn path=/vendor/tzdata/tzdata94f/; revision=2746; tag=vendor/tzdata/tzdata94f
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+# @(#)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