1. day-and-night - Noun
2. day-and-night - Adverb
3. day-and-night - Adjective Satellite
4. Day-and-night - Proper noun
at all times
Source: WordNetday and night
around-the-clock nursing care Source: Internet
Additionally, since it consists of an estimated 2.3 million blocks, completing the building in 20 years would involve moving an average of more than 12 of the blocks into place each hour, day and night. Source: Internet
A commercial featuring Steve Case telling people AOL was working day and night to fix the problem was made. Source: Internet
After another half period in the stellar orbit, the stars would complete their orbital cycle and return to the next stellar conjunction, and the familiar day and night cycle would return. Source: Internet
At lower altitudes, the increased temperature is like day and night, literally: like starting the morning at the highland daytime high, and then adding the heat of the day, again. Source: Internet
At this shop, the men worked day and night to prepare the wrecked cars for the next day while still running their body shop during the day. Source: Internet