Paris, 7 July 2015
Bulletin C 50
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 2015.
The difference between Coordinated Universal Time UTC and the
International Atomic Time TAI is :
from 2015 July 1, 0h UTC, until further notice : UTC-TAI = -36 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.
Earth Orientation Center of IERS
Observatoire de Paris, France