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, 9 August 2024 Bulletin D 143 ANNOUNCEMENT OF DUT1 From the 05 September 2024, 0h UTC until further notice, the value of DUT1 to be disseminated with the time signals will be DUT1 = + 0.1 s Bulletin D 144 should be issued in 2025 To unsubscribe: http://hpiers.obspm.fr/eop-pc/products/bulletins/bulletin_registration.html