Greenwich Mean Time subsection 23(3), the same rule applies to deeds and other instruments. During the experiment of 1968-1971, when the British Isles did not revert to Greenwich Mean Time during the winter, the all-year British Summer Time was called British Standard Time (BST). In the UK, UTC+0 is disseminated to the general public in winter and UTC+1 in summer. BBC radio stations broadcast the "six pips" of the Greenwich Time Signal. It is named from its original generation at the Royal Greenwich Observatory, is aligned to Coordinated Universal Time, and called either Greenwich Mean Time or British Summer Time as appropriate for
Greenwich Time Signal tone when a pip should be sounded. This let faults on the line be detected immediately by automated monitoring for loss of audio. The Greenwich Time Signal was the first sound heard in the handover to the London 2012 Olympics during the Beijing 2008 Olympics closing ceremony. The pips were also broadcast by the BBC Television Service, but this practice was discontinued by the 1960s. To celebrate the 90th birthday of the pips on 5 February 2014, the "Today" programme broadcast a sequence that included a re-working of the Happy Birthday melody using the GTS as its base sound. The