This is when the clocks change in 2017 - does it mean we gain or...

The leaves on the trees are changing colour so you guessed it - Autumn has arrived once again, bringing walks in the crisp air, Halloween, firework displays and shorter days.Before too long it will be time to turn the clocks back from British Summer Time to Greenwich Mean Time and the question everyone wants answering is whether we gain or lose an hour sleep when it happens.In the UK, the clocks go back one hour at 2am on the last Sunday in October, which means we all get an hour extra sleep...