How to say "a day (24 hours), day and night" in Russian?

Сутки

"a day (24 hours), day and night" is Сутки in Russian.

Сутки means "a day (24 hours), day and night" in English.

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Word #1932 of 4,000 by frequency in Russian — level B1.

Example

Магазин работает круглые сутки, даже по праздникам.

The shop is open around the clock, even on holidays.