Top Of The Hour Definition

noun

The beginning of any or each of the twenty-four divisions of the day; noon, 1:00, 2:00, etc.

News is broadcast at the top of the hour.

Webster's New World

The time at (very close to) the start of the next hour of time.

We'll have a news update at the top of the hour.

Wiktionary

Other Word Forms of Top Of The Hour

Singular:

top of the hour

Plural:

tops of the hours, tops of the hour

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