Question

why do we have a standard unit of time​

Answer 1

Answer:

Second is the correct answer

Answer 2

Explanation:

A unit of time or time unit is any particular time interval, used as a standard way of measuring or expressing duration. The base unit of time in the International System of Units, and by extension most of the Western world, is the second, defined as about 9 billion oscillations of the caesium atom.

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