day and night

/ˈdeɪ ən ˈnaɪt/
adjective
  1. Happening or continuing all the time, without stopping; constant.
    • The city has a day-and-night bus service for commuters.
    • They worked day-and-night shifts to finish the project on time.
    • The hospital provides day-and-night care for its patients.
Antonyms
What does "day and night" mean? | whatsthatwordmean | whatsthatwordmean