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

“Bitcoin miners have an advantage in understanding power and its use but there’s a night and day difference between mining and HPC support,” said Kevin Dede, senior research analyst at H.C.

From The Wall Street Journal

Ruhlmann collaborated with a sculptor on the bronze-plaque handles, with allegorical female figures representing Night and Day.

From The Wall Street Journal

The difference is night and day, said Sgt.

From The Wall Street Journal

It's been night and day since O'Neill returned to the club where he'd been revered in his previous stint between 2000 and 2005.

From BBC

So Night and Day was about journalism and its purposes; the Real Thing was about love and infidelity and starred Felicity Kendal, for whom Stoppard left his second wife, the doctor and broadcaster Miriam Stoppard.

From BBC