X-Git-Url: https://git.saurik.com/apple/system_cmds.git/blobdiff_plain/1815bff58803503e37009deeb85cfa8c22acf9d9..4c00c0aec6320dcabcba26ecd64dedc9ef4c6c6c:/zic.tproj/datfiles/leapseconds

diff --git a/zic.tproj/datfiles/leapseconds b/zic.tproj/datfiles/leapseconds
index 279d6bb..a107883 100644
--- a/zic.tproj/datfiles/leapseconds
+++ b/zic.tproj/datfiles/leapseconds
@@ -1,10 +1,10 @@
-#	$OpenBSD: leapseconds,v 1.2 1997/01/14 04:36:54 millert Exp $
-# @(#)leapseconds	7.8
+# @(#)leapseconds	7.20
 
 # 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
+# to keep UTC to within 0.9 s of UT1
+# (which measures the true angular orientation of the earth in space); 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
@@ -18,7 +18,7 @@
 #	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
+# If the leapsecond is Stationary (S) the given time is UTC
 
 # Leap	YEAR	MONTH	DAY	HH:MM:SS	CORR	R/S
 Leap	1972	Jun	30	23:59:60	+	S
@@ -41,3 +41,52 @@ Leap	1992	Jun	30	23:59:60	+	S
 Leap	1993	Jun	30	23:59:60	+	S
 Leap	1994	Jun	30	23:59:60	+	S
 Leap	1995	Dec	31	23:59:60	+	S
+Leap	1997	Jun	30	23:59:60	+	S
+Leap	1998	Dec	31	23:59:60	+	S
+Leap	2005	Dec	31	23:59:60	+	S
+
+#	INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS)
+#
+# SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE
+#
+# SERVICE DE LA ROTATION TERRESTRE
+# OBSERVATOIRE DE PARIS
+# 61, Av. de l'Observatoire 75014 PARIS (France)
+# Tel.      : 33 (0) 1 40 51 22 26
+# FAX       : 33 (0) 1 40 51 22 91
+# ...
+# http://hpiers.obspm.fr/eop-pc
+#
+#						Paris, 4 July 2005
+#							
+#						Bulletin C 30
+#
+#						To authorities responsible
+#						for the measurement and
+#						distribution of time
+#
+#
+#                                    UTC TIME STEP
+#                             on the 1st of January 2006
+#
+# A positive leap second will be introduced at the end of December 2005.
+# The sequence of dates of the UTC second markers will be:
+#
+#			2005 December 31,     23h 59m 59s
+#			2005 December 31,     23h 59m 60s
+#			2006 January   1,      0h  0m  0s
+#
+# The difference between UTC and the International Atomic Time TAI is:
+#
+# from 1999 January 1, 0h UTC, to 2006 January 1  0h UTC  : UTC-TAI = - 32s
+# from 2006 January 1, 0h UTC, until further notice       : UTC-TAI = - 33s
+#
+# Leap seconds can be introduced in UtC at the end of the months of December
+# or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every
+# six months, either to announce a time step in UTC or to confirm that there
+# will be no time step at the next possible date.
+#
+#					Daniel GAMBIS
+#					Head
+#					Earth Orientation Center of IERS
+#					Observatoire de Paris, France