On the dot.
[Idiom] ON THE DOT. - The Importance of Being Punctual in Modern Times
Exactly on time.
When something happens "on the dot," it occurs at the exact moment it was scheduled or expected to. This idiom underscores the importance of punctuality and precision in timing, whether in professional appointments, trains departing, or meeting start times.
Example Sentences
She arrived on the dot at 7 AM.
She arrived exactly at 7 AM as planned.
We must start the meeting on the dot to respect everyone’s time.
We must start the meeting exactly on time to respect everyone's schedule.
The show begins on the dot, so we can't be late!
The show starts exactly on time, so we cannot afford to be late.