A century ago the first beeps of the time signal from Greenwich - Physics and Mathematics. It was February 5, 1924 and since then that signal continued to mark time for decades, but then had to give in to the arrival of digital.

In Italy the Greenwich time signal was broadcast by the RAI radio and television networks, supplied from the early 1940s. At 8.00 pm on 31 December 2016 the Rai Codified Time Signal was broadcast for the last time from the Rai headquarters in Turin.