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on time

“on time” ->  exactly at the correct time,  punctually.

This phrase is used to describe something that arrives, happens, or is done when it should and is not late.

Example:

We managed to get there on time.

I want to emphasize the need to get this done on time.

As far as I know, he’s never come on time.

All students are required to be on time for class.

My only worry right now is getting to the airport on time.