INTERNATIONAL EARTH ROTATION SERVICE (IERS)
           SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE
                                   
 Bulletin   D  24               Paris le 10 October 1991
   

                      ANNOUNCEMENT  OF DUT1
  
   
 From the
                       21 November 1991, 0h UTC
 
 until further notice, the value of DUT1 to be disseminated with the
 time signals will be
   
                       DUT1= - 0.1 s
 
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                       ANNONCE DE DUT1
 
 A partir du
                       21 novembre 1991, 0h UTC
 
 jusqu'a nouvel avis, la valeur de DUT1 a diffuser avec les signaux
 horaires sera 
        
                        DUT1= - 0.1 s