all hours

Idioms  

1. Irregular times, as in You can't come home at all hours and expect your supper to be ready. The expression can also mean “late at night,” as in College students like to stay up talking until all hours. It is sometimes amplified into all hours of the day and night. [c. 1930]

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Example Sentences

“First of all, he’s up at all hours of the night, posting all of these lies and crazy stuff,” Gartner told the Daily Beast.

From Salon • May 26, 2026

“For those first 2½, almost three years … you’re doing whatever you can at all hours of the day and night,” Crabtree told MarketWatch of her time at SpaceX.

From MarketWatch • May 7, 2026

The probe follows other tension inside the office, where some staff objected to working all hours of the night to support colleagues across the Atlantic Ocean while earning less, the people said.

From The Wall Street Journal • May 5, 2026

At the site where he was killed in south Minneapolis, close to the Calvary Baptist Church, mourners gathered at all hours to lay flowers and light candles in his honour.

From BBC • Jan. 25, 2026

Thursday night, August 15 Monte Cristi Manolo has been staying out till all hours.

From "In the Time of the Butterflies" by Julia Alvarez