Question

define the most ancient unit of time?​

Answer 1

Explanation:

hamuštum

The hamuštum is approximately seven days long, but scholars disagree as to whether it was exactly seven days (like the modern "week") or an interval equal to about one-fourth of a lunar calendar month (which would make it vary between seven and eight days).

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Answer 2

Answer:

The ancient people used to measure time with the help of sun rays