top of the hour

Precisely o'clock moment

Top of the hour is the moment when a new hour begins—when the minutes read :00.

Broadcasters use it to mark programming transitions: We'll have news at the top of the hour.

The phrase appears most often in radio and television, where schedules run by the clock.

Related

timing · start · minutes · breaking · live coverage · radio broadcast · on the dot · right on time · deadline · beginning · appointment · bulletin · timeliness · chime · countdown · time signal · punctuality · sharp

Categories
Opposites
position within the hour

top of the hourbottom of the hour

Thirty minutes after

half past · 0 · quarter past · quarter to · 5

Family

topped, topping, topmost, topless, hour, hours, hourly, hourglass

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Everyday, not technical · Rated G