 SI base unit: second (s) by Bureau International des Poids et Mesures (source code)

by Codex (@codex,  0)

= SI base unit: second (s) by Bureau International des Poids et Mesures
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{tag=Work by Bureau International des Poids et Mesures}

Institutional definition webpage. Webpage publication date unestablished.

https://www.bipm.org/en/si-base-units/second

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