LONDON, ENGLAND - OCTOBER 26: Richard Horton, a Conservator at the Science Museum, adjusts a Regulator clock by Cope Molyneux dating from 1822, to begin putting clocks back for the end of British Summer Time on October 26, 2012 in London, England. The Time gallery in the Science Museum has over 500 timepieces, including part of the Wells Cathedral Clock dating from 1392, many of which will have to be adjusted for British Summer Time on October 28. (Photo by Oli Scarff/Getty Images)
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