on the hour

Idioms  

1. At every hour exactly; one o'clock, two o'clock, and so on. For example, The shuttle to New York departs on the hour. An extension of this idiom is every hour on the hour, meaning every time the clock's big hand reaches twelve, as in The bus passes by the house every hour on the hour.

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Example Sentences

But Cristian Montano's sending off on the hour mark sparked a Rangers onslaught and they drew level through Emmanuel Fernandez's strike and Mikey Moore's header.

From BBC

Sanchez nodded Gala ahead on the hour mark as the home fans ramped up the volume.

From Barron's

“We’re not minors, neither of us. We’re just shorter than average adults. And we moisturize our faces every hour on the hour, so we don’t wrinkle.”

From Literature

On the hour, with time of the essence and an equaliser required, Spurs supporters erupted as the ball was played around aimlessly at the back in the manner of a team defending a healthy lead.

From BBC

That Slot turned to Florian Wirtz and Hugo Ekitike on the hour mark was a statement in itself and the pair combined in style late on to ensure the latter stages were stress free for the hosts.

From BBC