The closing ceremony of the London 2012 Summer Olympics, also known as A Symphony of British Music, was held on 12 August 2012 in the Olympic Stadium, London. The chief guest was Prince Harry of Wales representing Queen Elizabeth II. The closing ceremony was created by Kim Gavin, Es Devlin, Stephen Daldry, David Arnold and Mark Fisher. The worldwide broadcast began at 21:00 BST (UTC+1) and finished on 13 August 2012 at 00:11, lasting three hours and eleven minutes.