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In Our Time

Archive: The Measurement of Time

Oct 12, 2026 · 43m

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Misha Glenny chooses the first of his archive picks - bringing back classic conversations from the In Our Time archive, every Monday. Humans have tried to calculate, regulate, and measure time for thousands of years: from systems based on tracking sunrise and sunset, to the invention of increasingly precise mechanical alarm clocks and astrolabes. In this archive episode, first released in March 2012, Melvyn Bragg and guests discuss the methods used to measure time throughout human history. Early civilisations used the movements of heavenly bodies to tell the time, but in the ancient world there were also sophisticated timekeeping devices such as water clocks. The development of mechanical…