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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:

Clean electricity that is available round-the-clock, such as geothermal, is considered especially valuable.

From The Wall Street Journal Sep. 1, 2026

But the grid is missing round-the-clock power to replace Diablo Canyon, said Conor Doyle, chief of strategic initiatives at PG&E, during a recent tour of the plant.

From Los Angeles Times Aug. 16, 2026

Disabled people can be left unable to work and facing additional outgoings like higher energy costs for round-the-clock cooling.

From BBC Aug. 11, 2026

Vance and his family are required to have round-the-clock Secret Service protection.

From BBC Jul. 23, 2026

The first thing he does is instruct Soldier Jackson, his second in command, to set up a two-person, round-the-clock guard on Peeta.

From "Mockingjay" by Suzanne Collins

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