all hours

plural noun

: a very late time
stayed up until all hours

Examples of all hours in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Doctors and nurses are available all hours of the day. Rachel Royster, Fort Worth Star-Telegram, 10 Mar. 2026 People walk freely in Sayulita all hours of the night and day. Chicago Tribune, 7 Mar. 2026 That was complemented by what was known as a Tony Gwynn SoloHitter contrivance, through which four chords connected to a baseball would reset the ball to its waist-high starting point after each thwacking during all hours of the day. Kansas City Star, 6 Mar. 2026 Ports, airports, and fulfillment centers work at all hours of the day. Nicholas Gordon, Fortune, 24 Feb. 2026 See All Example Sentences for all hours

Word History

First Known Use

1668, in the meaning defined above

Time Traveler
The first known use of all hours was in 1668

Browse Nearby Words

Cite this Entry

“All hours.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/all%20hours. Accessed 16 Mar. 2026.

Kids Definition

all hours

plural noun
: a very late time
stayed up until all hours
Last Updated: - Updated example sentences
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