> INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS) > >SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE > > >SERVICE DE LA ROTATION TERRESTRE DE L'IERS >OBSERVATOIRE DE PARIS >61, Av. de l'Observatoire 75014 PARIS (France) >Tel. : +33 1 40 51 23 35 >e-mail : [email protected] >http://hpiers.obspm.fr/eop-pc > > > Paris, 06 July 2017 > > > Bulletin C 54 > > To authorities responsible > for the measurement and > distribution of time > > > > INFORMATION ON UTC - TAI > > > NO leap second will be introduced at the end of December 2017. > The difference between Coordinated Universal Time UTC and the > International Atomic Time TAI is : > > from 2017 January 1, 0h UTC, until further notice : UTC-TAI = -37 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. > > > Christian BIZOUARD > Director > Earth Orientation Center of IERS > Observatoire de Paris, France
An inevitable decision: current Bulletin A has UT1-UTC crossing zero (so, more solidly, UT1-TAI crossing an integer) on 2018-04-30, so does not permit DTAI to have any other value for the first half of 2018. -zefram _______________________________________________ LEAPSECS mailing list [email protected] https://pairlist6.pair.net/mailman/listinfo/leapsecs
