adverb, noun

  1. day and night, around the clock, always, constantly.

Variations

Pronunciation Kanji Kana Is Common
日夜 にちや

Contained Kanji Breakdown

day, sun, Japan
ひ にっ ニチ (1st, N5)
night, evening
よる ヤ よ (2nd, N4)
kettle lid radical (no. 8)
トウ (Kentei 1)
human radical (no. 9)
evening
ゆう セキ ゆ (1st, N4)
dot, tick or dot radical (no. 3)
チュ (Kentei 1)