The photograph shows the Pavillon de Breteuil near Paris, where the International Bureau of Weights and Measures (BIPM) generates coordinated universal time (UTC). It is here that BIPM consolidates data from 400 atomic clocks, distributed around the world on every continent, in order to calculate the coordinated universal time. This forms the basis for all measurements of time on our planet. All clocks on earth are synchronized according to the time signals emitted from here.