in the nick of time
US /ɪn ðə nɪk əv taɪm/
UK /ɪn ðə nɪk əv taɪm/

1.
at the last possible moment; just in time
:
•
The rescue team arrived in the nick of time to save the stranded climbers.
•
I finished my presentation in the nick of time before the meeting started.