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Synonyms

round-the-clock

American  
[round-thuh-klok] / ˈraʊnd ðəˈklɒk /

adjective

  1. a variant of around-the-clock.


round-the-clock British  

adjective

  1. (or as adverb round the clock) throughout the day and night

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Explanation

Use the adjective round-the-clock to mean always, at any time of day. A security company that uses round-the-clock surveillance is keeping an eye on things 24 hours a day. Round-the-clock flights to New York leave all day and all night long, and a diner that offers round-the-clock breakfast will serve you pancakes whether it's six in the morning or midnight. If a patient needs round-the-clock care in the hospital, they'll have nurses checking on them nonstop, day and night. Round-the-clock dates from the 1940s and was first used to describe air raids during World War II.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Many FBI agents have told us the immediate aftermath of 9/11 was a round-the-clock frenzy.

From BBC Sep. 7, 2026

In an illustration of the scale of destruction, Chinese state media said road access to hard-hit Gyirong Port in Tibet had only finally been restored on Wednesday after "days of round-the-clock repair work".

From Barron's Sep. 2, 2026

Advocates of tokenization point to near-instant trade settlement and round-the-clock trading availability.

From The Wall Street Journal Sep. 1, 2026

In an April 2025 court filing, a psychiatrist hired by the defense found that Jeffries was suffering from Alzheimer’s disease and other cognitive disorders requiring round-the-clock care.

From The Wall Street Journal Aug. 21, 2026

Ernest estimated that the conversion program would cost about $60,000, mostly for labor on round-the-clock shifts.

From "Big Science" by Michael Hiltzik

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