day and night

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day and night

All the time. I've been working day and night to make sure that everything is perfect when your mom comes to visit.
See also: and, night

day and night

 and night and day
all the time; around the clock. The nurse was at her bedside day and night. The house is guarded night and day.
See also: and, night

day and night

see under night and day.
See also: and, night