Episode Details

Why is a small observatory in south east London so important to the story of how we tell the time? Speaking to Elinor Evans, Emily Akkermans, Curator of Time at the Royal Museums Greenwich, shares the history behind Greenwich Mean Time (GMT). From 17th-century efforts to solve the 'longitude problem' at sea, to the red 'time ball' that still drops at 1pm each day, this episode uncovers how Britain’s maritime ambitions, royal patronage and scientific ingenuity turned Greenwich into the beating heart of global timekeeping.

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