INTERNATIONAL   EARTH   ROTATION   SERVICE   (IERS) 
                     SERVICE INTERNATIONAL 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, 27 March 1998


                                                        Bulletin D 75










                               ANNOUNCEMENT OF DUT1




         From the


                               7 May 1998, 0h UTC


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




                                  DUT1 = - 0.1s
                                  



         Bulletin D 76 should be issued in May 1998.