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 Sound Archive of around 350,000 hours in total duration. Automatically available are "live major news sequence programmes, live music sessions and concerts, drama, arts, features, events, light entertainment, science and education programmes", while "DJ shows with commercially recorded music, local radio and World Service output" are less likely to be retained. Access to part of the archive is made available to researchers and the public through the British Library. Technological advances have increasingly improved the durability of early recordings, requiring their translation into digital formats, and enhancements such as noise reduction. BBC Sound Archive The BBC Sound Archive is a collection of