night shift; night duty; night work
Refers to working during the night, especially in jobs with rotating shifts. Often contrasted with 日勤 (day shift).
See also: 日勤
I have night shifts all this week, so it's tough.
He works the night shift as a nurse.
He's working the night shift at the hospital this week.
I'm going on night duty starting tonight.
I have a night shift today, so I'll rest early.
I had a coworker swap night shifts with me.
夜勤 refers to working the night shift, while 日勤 refers to working the day shift; the two are typically contrasted in shift-work schedules.
夜勤 is a regularly scheduled shift that happens to fall at night, while 残業 is extra work done beyond one's normal hours, regardless of time of day.
夜勤 means working the night shift (a job schedule), while 夜間 simply refers to the nighttime period itself; the two share the kanji 夜 but differ in meaning.
end of a night shift; off night duty
Compound of 夜 (night) and 勤 (duty/service). The reading is on'yomi.