Last Updated：2025/11/25

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(physics) A natural unit of time, equivalent to the time it takes light to traverse one Planck length; it is the smallest duration of time that has physical meaning.

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Planck time

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Source Word

Planck time

Noun

(physics) A natural unit of time, equivalent to the time it takes light to traverse one Planck length; it is the smallest duration of time that has physical meaning.

Japanese Meaning

（物理学）光が1プランク長を進むのに要する時間として定義される、物理的意味を持つ最小の時間単位。

What is this buttons?

Physicists consider the Planck time to be the shortest meaningful interval when discussing the origin of the universe.

Google Translation / DeepL Translation

物理学者は、光が1プランク長さを進むのに要する時間に相当する自然な時間の単位が、宇宙の起源を議論する際に意味を持つ最短の時間間隔であると考えている。

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Sense（1）

(physics) A natural unit of time, equivalent to the time it takes light to traverse one Planck length; it is the smallest duration of time that has physical meaning.

Planck times

（ plural ）

Details

Planck time

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Planck time

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