on the dot

on the dot

Meaning:

• exactly on time
• at a precise time

Examples:

1. We were asked to be there at five on the dot.
2. The Metro train arrived at five o'clock on the dot.
3. Ruth came promptly on the dot of nine.
4. The birthday party will begin at 7 on the dot.
5. My daughter leaves for school at six on the dot at early morning.