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

  • Admiral Patrick@dubvee.org
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    10 个月前

    Ha, I phrased it poorly.

    What I meant was that I started noticing Orion’s position in the sky at certain relatively fixed times. After a while, I could just look at where it was, relative to the horizon, and determine the current time within about 30 minutes (between about 5:30 PM and 3 AM when it’s above the horizon here)