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.
Silvia was pressuring Wyatt to get back together with him, calling at all hours of the night and sitting outside her workplace. — Amanda Lee Myers, USA Today, 18 Aug. 2026 To be the president of the United States is to be on call all hours of the day. — Nicole Kliest, Vogue, 26 July 2026 As stated in promotional materials for the documentary, most American moms don’t want to milk their own cow or stay up working all hours of the night after their kids go to bed. — Emily Kelleher, InStyle, 22 June 2026 During the World Cup in 2022, China already accounted for nearly half of all hours of viewing on digital and social platforms globally, according to FIFA. — Evelyn Cheng, CNBC, 15 June 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

Rhymes for all hours

See All Rhymes for all hours

Browse Nearby Words

all hell breaks loose
all hours
alliable
See all Nearby Words

Cite this Entry

“All hours.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/all%20hours. Accessed 23 Aug. 2026.

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Kids Definition

all hours

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