Made me smile this morning (bit old but I'd not seen it before)
http://www.ntsouthwest.co.uk/2014/04/putting-the-clock-forward-at-avebury-stone-circle/
They forgot to do it in 1987. Everything went tits up for quite a while after. Moon forgot to rise, Sun went from West to East, Rupert Bear couldn't poo, was terrible!