Holidays in Saint Helena

Official national public holidays. Regional and religious observances may vary by area.

About Time in Saint Helena

In 1834, Exact Time Became a Service Ships Could Obtain in Jamestown

For nineteenth-century ships calling at St Helena, accurate time had a direct commercial and navigational value. A marine chronometer carried Greenwich time at sea; its error affected the longitude calculated from astronomical observations. Jamestown therefore offered visiting vessels something more useful than a public clock: a visible precision signal against which a ship could rate its chronometers before continuing across the Atlantic.

St Helena's time ball entered service in January 1834 under the control of the Ladder Hill Observatory, making it one of the earliest operational systems of its kind. A notice issued by the observatory on January 21 described two daily signals. The ball fell at local mean noon for island residents and again at 1 p.m. Greenwich Mean Time specifically for shipping. A gun at High Knoll accompanied the local-noon signal.

The procedure was carefully staged. Five minutes before the drop the white ball was raised halfway, then brought to the top two minutes before the signal. At the calculated instant it fell. A repeater arrangement allowed ships without a clear view of the observatory to see the signal from another position on Ladder Hill.

The system was also available on demand. A vessel arriving after the normal 1 p.m. Greenwich signal but expecting to sail before the next day could hoist the Blue Peter flag and receive another time-ball drop at the next hour. Foreign ships could request the same service with their national ensign. If there was uncertainty about a signal, the flag could be dipped and raised again to request another drop at the following quarter hour.

Robert Wauchope, the Royal Navy officer associated with the development of the time-ball system, visited St Helena aboard HMS Thalia in December 1834. His contemporary account claimed that some ships were calling at the island specifically because the chronometer signal was available. Whether every such call can be independently verified or not, the claim captures the economic logic of the installation: reliable time was part of the service infrastructure of a port on an ocean route.

By the middle of the century it was not necessarily free. A five-shilling charge for the time-ball service is documented in 1859, appears again in navigation material from 1867 and 1883, and was still recorded in 1888. Admiralty instructions from the later nineteenth century also told mariners that chronometers could be sent directly to the Time Office for comparison.

The astronomical observatory itself had already closed on February 29, 1836 after the Crown administration judged its annual cost of £300 unjustified. Precision timekeeping survived the institution that had created it. The observatory's clocks were retained, the principal ball was moved into Jamestown, and responsibility passed to the master attendant. A contemporary report from 1837 says the ball continued to be dropped twice at scheduled times each day and more often when a ship's commander requested it.

Admiralty lists still recorded both the Jamestown Time Office ball and the Ladder Hill repeater in 1904. By the 1908 list they had disappeared. The service had therefore lasted for roughly seven decades, through the transition from East India Company administration to Crown government and through major changes in Atlantic shipping.

St Helena Kept Its Own Solar Clock Long After It Was Already Signaling Greenwich Time to Ships

The time-ball routine contained an apparent contradiction. Shipping received a signal tied to Greenwich Mean Time, but everyday island time remained based on St Helena's own longitude. Nineteenth-century Admiralty tables put 1 p.m. Greenwich at about 12:37 p.m. by the mean time used at Ladder Hill. In other words, Greenwich and the island's civil clock coexisted in the same time-signal system.

That arrangement continued far longer than the time balls themselves. Local historical records place the abandonment of St Helena solar time on August 10, 1941, during the Second World War. The island moved to Greenwich Mean Time, advancing its civil clock by roughly twenty-three minutes.

The wartime context is important. Naval movements, shipping reports and military communications in the South Atlantic were routinely being recorded in GMT. Bringing St Helena's everyday clock onto the same reference removed a small but persistent conversion from communications with Britain and wartime shipping. Unlike a daylight-saving change, the twenty-three-minute advance was not scheduled to reverse later in the year.

The reform also erased the old distinction embedded in the nineteenth-century time-ball service. A Greenwich signal no longer represented one clock for ships while island residents lived approximately twenty-three minutes behind it. After 1941, the external maritime reference and the island's civil time were aligned.

On St Helena, a Time Written Into a Law Means GMT Unless the Law Says Otherwise

The modern legal rule is unusually direct. Section 35 of St Helena's Interpretation Ordinance states that when an expression of time appears in an Ordinance, it means the standard time of St Helena. Unless the Governor prescribes otherwise by proclamation, that standard time is Greenwich Mean Time.

The rule matters well beyond clocks. A statutory filing deadline, licence expiry, court requirement, government notice or other legally defined hour is interpreted against the island's standard time without each law having to repeat the time zone. Section 36 then supplies separate rules for calculating legal periods, including how the first and last days are treated and what happens when a deadline falls on a Sunday or public holiday.

St Helena Government also states that the island remains on GMT throughout the year and does not adopt daylight saving time. The result is a legal clock with no seasonal ambiguity: the one-hour changes made in the United Kingdom do not alter St Helena's statutory time, even though both places share GMT during the British winter.

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