What does 日夜 mean?
日夜 is a Japanese noun meaning “day and night, always” in English. It is written as 日夜 in kanji, にちや in hiragana, and nichiya in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
看護婦たちは、日夜患者の世話をしている。
The nurses attend to the patient day and night.