- a variation of around-the-clock.
round-the-clock
Americanadjective
adjective
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.
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.
Phillis fears the new support levels won’t be enough to cover her family’s care, which includes round-the-clock nursing from her and several home health nurses for her daughters.
From Barron's • Jun. 20, 2026
“These liddol ones are currently spending quality family time behind the scenes while mom keeps busy with round-the-clock cuddle puddles, grooming and care.”
From Los Angeles Times • Jun. 17, 2026
One key difference: Perpetual futures offer round-the-clock trading seven days a week and settlement at regular intervals.
From MarketWatch • May 29, 2026
Technology companies like Google and Meta, which require round-the-clock electricity for their data centers, are among companies building storage capacity.
From The Wall Street Journal • May 22, 2026
The mansion’s sure to be heavily guarded, under round-the-clock camera surveillance, and laced with pods that could become live at the flick of a switch.
From "Mockingjay" by Suzanne Collins
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.