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.
To the chagrin of critics, the charming promenade on the New River also has plenty of homeless people who come and go all hours of the day and night. Susannah Bryan, Sun Sentinel, 11 Aug. 2025 Certified food protection manager not employed by facility and present during all hours of operation. Lillie Davidson, Fort Worth Star-Telegram, 2 Aug. 2025 Under the new policy, people will be prohibited from sitting or laying down on the ground outside City Hall during all hours of the day. Mathew Miranda, Sacbee.com, 30 July 2025 Again, none of our tollbooths are staffed all hours, year-round. Dave Boucher, Freep.com, 18 July 2025 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 20 Aug. 2025.

Kids Definition

all hours

plural noun
: a very late time
stayed up until all hours
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!