Thunder Bolt
Silly old bat
It was long before the railways. 1761 was when John Harrison invented the maritime clock, which was why I mentioned seafarers etc.Fair points but I believe it was brought in to unify the UK or at least England for the benefit of railway travel. It was obvious to use Greenwich Mean Time as mariners had been using it for centuries. Just because we adjust things to be more convenient does not mean the death of GMT.