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
BBC Radio Manchester the Day". In 1983 and 1984 the radio station ran a series of experimental community stations, each of which used the 1296 kHz AM frequency in turn. The stations were BBC Radio Bury (late 1983/early 1984), BBC Radio Oldham, BBC Radio Rochdale (eight weeks from 14 May 1984), BBC Radio Trafford (which operated from a mobile studio in a school playground) and BBC Radio Wigan (summer 1984). The stations were part-time services which opted out from the main BBC Radio Manchester service. The experiments were never repeated. From October 1988 until 3 April 2006, the station was named BBC GMR