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

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[–] 20 points 2 years ago* (last edited 2 years ago)

Water clock was a possibility but uncommon. Early industrial age was a person that you paid to come bang on your shutters until you responded.

Most people just kept a circadian routine. Another trick is to simply drink as much water as you need so that you will wake up after a given amount of time.

The idea of time as a unit of measure that is critical for task completion is a rather new invention of current culture.

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