JMdict: 2832639

昼夜を問わず 【ちゅうやをとわず】

  1. [exp] day and night; around the clock
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Kanji in this word:

Kanji Meanings On Readings Kun Readings
Daytime, Noon チュウ ひる
Night, Evening よ, よる
Question, Ask, Problem モン と.う, と.い, とん