INTERNATIONAL   EARTH   ROTATION   SERVICE   (IERS) 
SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE


BUREAU CENTRAL DE L'IERS
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: iers@obspm.fr Paris, 16 April 1999

Bulletin D 80





ANNOUNCEMENT OF DUT1


From the

27 May 1999, 0h UTC

until further notice, the value of DUT1 to be disseminated with the
time signals will be


DUT1 = + 0.5 s


Bulletin D 81 should be issued in June 1999.