When I thought about it, I remembered that the clock in the ringing room at church receives radio signals from Anthorn aerials to make sure it stays correct to UK time, as set by the physicists at NPL. My Tower Captain likes to make sure the clock on the outside of the church tower is set correctly. In the old days, it would have been set to the time at which the Sun was highest in the sky locally. Few people would have owned their own watch or clock, so it was vital to the town.
