FW: Bulletin C number 33
Olson, Arthur David (NIH/NCI) [E]
olsona at dc37a.nci.nih.gov
Thu Feb 1 14:49:37 UTC 2007
-----Original Message-----
From: services.iers at obspm.fr [mailto:services.iers at obspm.fr]
Sent: Thursday, February 01, 2007 9:49 AM
To: adresc1 at hpopa.obspm.fr
Subject: Bulletin C number 33
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
Internet : services.iers at obspm.fr
Paris, 1 February 2007
Bulletin C 33
To authorities
responsible
for the measurement and
distribution of time
INFORMATION ON UTC - TAI
NO positive leap second will be introduced at the end of June 2007.
The difference between Coordinated Universal Time UTC and the
International Atomic Time TAI is :
from 2006 January 1, 0h UTC, until further notice : UTC-TAI = -33 s
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
Director
Earth Orientation Center of
IERS
Observatoire de Paris, France
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