The sun dial worked during daylight, but how did people agree on what time it was at night before clocks were invented?

  • deadbeef79000@lemmy.nz
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    10 months ago

    The first pendulum clocks “broke” when shipped to other parts of the world. They didn’t keep the same time as the place of manufacture because gravity was ever so slightly different (Earth being an oblate spheroid) approaching the equator slowed the clocks down enough to slowly lose time.