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History of the One o'clock Gun

1861
One o'clock Gun set up at Edinburgh Castle. Colour drawings - Riggers setting up cable - Firing procedure - The Half Moon Battery Edinburgh Castle 1882

1863
Time guns set up at Newcastle-upon-Tyne, North Shields and South Shields.

1872
Dundee time gun set up.

1896
Royal Observatory opens on Blackford Hill. Time Circuit, One o'clock Gun

1913
32 pounder installed as One o'clock Gun

1923
18 pounder field gun replaces 32 pounder in July

1941
18 pounder field gun sent to Bute to be used as an anti-tank weapon. Found to be impractical the gun is soon withdrawn from service. The One o'clock Gun resumed firing four years later.

1952
25 pounder replaces 18 pounder field gun in May. Time gun moved to Mills Mount Battery in 1971 and the clock withdrawn from service.

2001
105mm Light Gun replaces 25 pounder in November.