The One O’Clock Gun is fired every day (except Sunday) at precisely 13:00, allowing locals to check their watches and visitors shit themselves 😉
Interestingly at the same time, a ‘Time Ball’ is doped from Nelsons Monument, on Calton hill acting as a time signal to the ships in Edinburgh’s port of Leith, and to ships at the anchorage in the Firth of Forth, thus allowing the ships to set their chronometers