in the nick of time

only a few moments before it is still possible to get something done or avoid something bad from happening

He arrives in the nick of time to catch his flight before the gate closes.
The firefighter rescues the trapped cat from the burning building in the nick of time.
They submit their project proposal just in the nick of time, minutes before the deadline.
She called me in the nick of time, before I started worrying.
In the nick of time, we managed to catch the last train.

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