1# @(#)leapseconds 7.14
2
3# $FreeBSD: head/share/zoneinfo/leapseconds 86222 2001-11-09 19:17:59Z wollman $
4
5# Allowance for leapseconds added to each timezone file.
6
7# The International Earth Rotation Service periodically uses leap seconds
8# to keep UTC to within 0.9 s of UT1
9# (which measures the true angular orientation of the earth in space); see
10# Terry J Quinn, The BIPM and the accurate measure of time,
11# Proc IEEE 79, 7 (July 1991), 894-905.

--- 28 unchanged lines hidden (view full) ---

40Leap 1989 Dec 31 23:59:60 + S
41Leap 1990 Dec 31 23:59:60 + S
42Leap 1992 Jun 30 23:59:60 + S
43Leap 1993 Jun 30 23:59:60 + S
44Leap 1994 Jun 30 23:59:60 + S
45Leap 1995 Dec 31 23:59:60 + S
46Leap 1997 Jun 30 23:59:60 + S
47Leap 1998 Dec 31 23:59:60 + S
48
49# INTERNATIONAL EARTH ROTATION SERVICE (IERS)
50# SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE
51#
52# SERVICE DE LA ROTATION TERRESTRE
53# OBSERVATOIRE DE PARIS
54# 61, Av. de l'Observatoire 75014 PARIS (France)
55# Tel. : 33 (0) 1 40 51 22 26
56# FAX : 33 (0) 1 40 51 22 91
57# Internet : iers@obspm.fr
58#
59# Paris, 25 June 2001
60#
61# Bulletin C 22
62#
63# To authorities responsible
64# for the measurement and
65# distribution of time
66#
67# INFORMATION ON UTC - TAI
68#
69# NO positive leap second will be introduced at the end of December 2001.
70# The difference between UTC and the International Atomic Time TAI is :
71#
72# from 1999 January 1, 0h UTC, until further notice : UTC-TAI = -32 s
73#
74# Leap seconds can be introduced in UTC at the end of the months of December
75# or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every
76# six months, either to announce a time step in UTC, or to confirm that there
77# will be no time step at the next possible date.
78#
79# Daniel GAMBIS
80# Director
81# Earth Orientation Center of IERS