night and day

Idioms  

1. Also day and night. Continually, without stopping. This phrase is used either literally, as in The alarm is on night and day, or hyperbolically, as in We were working day and night on these drawings. Shakespeare put it by night and day in The Comedy of Errors (4:2): “Time comes stealing on by night and day.”

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Example Sentences

See Examples For:

night and day

It’s apparently not enough to have a full-time aide, a svelte blonde by the name of Natalie Harp, to follow him around night and day for the sole purpose of offering praise.

From Salon ● Sep. 9, 2026

But she remained optimistic, hopeful that the situation will improve "because firefighters are working night and day to put out the fire".

From Barron's ● Jul. 25, 2026

She said the difference was like night and day, and the therapy had given her "a lot of my life back".

From BBC ● Jun. 3, 2026

They relish one relaxing night and day before they are interrupted by a late-night knock on the door.

From The Wall Street Journal ● Mar. 4, 2026

I worked night and day to get it right, often with one of my colleagues, engineer Al Hamer, whom I collaborated with on several reports.

From "Reaching for the Moon" by Katherine Johnson