in the nick of time

to do something in just enough time to be successful

Example Sentences:

I handed my exam in just in the nick of time so I didn’t lose any points.

I arrived just in the nick of time to catch my bus.

A: Were you late?
B: Nope, I got there just in the nick of time!

Media and Links:

Just in the Nick of Time

Similar idioms:

1. lose track of time
2. kill time