at (some time) sharp

At an exact time, with the emphasis that one must not be late. We need to leave for the airport at 8 AM sharp tomorrow morning. Please be here at 6:30 sharp.

Common Names:

Name	Pronounced	Usage
ÚRsula	OOR-soo-lə (Portuguese), OOR-soo-lah (Spanish)	Portuguese, Spanish
Manasses	-	Biblical, Biblical Latin, Biblical Greek
Eduards	-	Latvian
Khordad	-	Persian Mythology
Gwenneg	-	Breton
Ian	[iən]