night and day

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night and day

all the time day and night We worked night and day to finish the job in a month.
See also: and, night

night and day

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."
See also: and, night