INTERNATIONAL   EARTH   ROTATION AND REFERENCE SYSTEMS  SERVICE   (IERS) 
SERVICE INTERNATIONAL DE LA ROTATION  TERRESTRE ET DES SYSTEMES DE REFERENCE


SERVICE DE LA ROTATION TERRESTRE
OBSERVATOIRE DE PARIS                                   
61, Av. de l'Observatoire 
75014 PARIS (France)
Tel. 33 (0) 1 40 51 23 35  
http://iers.obspm.fr
email: services.iers@obspm.fr                      Paris,  12 October 2026

                                                   Bulletin D 147


 

                               ANNOUNCEMENT OF DUT1


        From the

                           29 October 2026, 0h UTC

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


                                  DUT1 =  -0.1 s
                                  

        Bulletin D 148 may be issued in february 2027
         
         
      
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