One O'Clock Gun

World Time Balls

1834 - St Helena Time Ball

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A time ball was set up at St. Helena Observatory in 1834. The white canvas ball dropped at noon while a time gun positioned on the High Knoll fired a signal. The procedure was repeated at one to coincide with Greenwich mean time. Illustration by John Thomson.
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Queen Victoria's Birthday Parade 1866. Photograph courtesy of the Museum of St. Helena.
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