1# @(#)leapseconds 7.17 |
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 UT1 7# (which measures the true angular orientation of the earth in space); see 8# Terry J Quinn, The BIPM and the accurate measure of time, 9# Proc IEEE 79, 7 (July 1991), 894-905. --- 29 unchanged lines hidden (view full) --- 39Leap 1990 Dec 31 23:59:60 + S 40Leap 1992 Jun 30 23:59:60 + S 41Leap 1993 Jun 30 23:59:60 + S 42Leap 1994 Jun 30 23:59:60 + S 43Leap 1995 Dec 31 23:59:60 + S 44Leap 1997 Jun 30 23:59:60 + S 45Leap 1998 Dec 31 23:59:60 + S 46 |
47# INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) |
48# |
49# SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE 50# |
51# SERVICE DE LA ROTATION TERRESTRE 52# OBSERVATOIRE DE PARIS 53# 61, Av. de l'Observatoire 75014 PARIS (France) 54# Tel. : 33 (0) 1 40 51 22 26 55# FAX : 33 (0) 1 40 51 22 91 |
56# Internet : services.iers@obspm.fr |
57# |
58# Paris, 15 January 2004 |
59# |
60# Bulletin C 27 |
61# 62# To authorities responsible 63# for the measurement and 64# distribution of time 65# 66# INFORMATION ON UTC - TAI 67# |
68# NO positive leap second will be introduced at the end of June 2004. |
69# The difference between UTC and the International Atomic Time TAI is: |
70# |
71# from 1999 January 1, 0h UTC, until further notice : UTC-TAI = -32 s 72# |
73# Leap seconds can be introduced in UTC at the end of the months of December 74# or June, depending on the evolution of UT1-TAI. Bulletin C is mailed every 75# six months, either to announce a time step in UTC, or to confirm that there 76# will be no time step at the next possible date. 77# 78# Daniel GAMBIS 79# Director 80# Earth Orientation Center of IERS |
81# Observatoire de Paris, France |