Hi, Regarding this subject, the IERS is running a survey about UTC definition change. The survey was announced in the latest C bulletin (42) available at ftp://hpiers.obspm.fr/iers/bul/bulc/bulletinc.42 " IMPORTANT: After years of discussions, a proposal to fundamentally redefine UTC will come to a conclusive vote in January 2012 at the ITU-R in Geneva. This proposal would halt the intercalary adjustments known as leap seconds that maintain UTC as a form of Universal Time. The Earth Orientation Center of the IERS organizes a survey online with the objective to find out the strength of opinion for maintaining or changing the present system. Link to the questionnaire: http://hpiers.obspm.fr/eop-pc/index.php?index=questionnaire Your response is appreciated before 30 August 2011 " Regards. -- Yann Droneaud