we did not plan for it, though i knew but somehow our time matched with this, and we wiyneesed this centulr old tradition. Every day except Sunday) at precisely 1pm, you can hear the Edinburgh Gun go off from the clifftop where the castle sits. native Edinburgers check their watches when it is being fired from the hill.
They've been firing it since 1861! There have therefore been a whole series of different one o'clock guns over time. The One O'clock Gun is one of only a few surviving time signals, once a common feature of ports around the United Kingdom
History behind it- once upon a time, ships in the Firth of Forth set their maritime clocks by it. Ships previously relied on a visual signal, watching the time ball atop the Nelson Monument on Calton Hill drop - [look out for this next time you're in town at lunchtime.]
The time ball wasn't visible on foggy days, so the gun's audible bang solved that problem, firing at the same time as the time ball drops at 1pm. read more