にちや日夜nichiya
1.
A term that describes the continuous passage of time, encompassing both daytime and nighttime, often used to illustrate relentless effort or activity without breaks.
2.
A phrase indicating a ceaseless and persistent state of being or action that occurs throughout all hours, symbolizing an unwavering commitment or dedication.
3.
A concept that refers to the entirety of time over a 24-hour period, suggesting an intensity of experience or endeavor that spans both day and night.
4.
An expression used to denote the persistence of actions or feelings that occur without interruption, conveying the idea of being constantly engaged or occupied throughout the day and night.
Example:
看護婦たちは、日夜患者の世話をしている。