the last possible opportunity for doing something.
He always waits until the last minute to shop for presents.
Usage notes: used with until or till, as in the example, or with at:
At the last minute, we found our tickets.
the last minute
The very last possible moment or opportunity. In an attempt to avoid a government shutdown, congress has pushed forward a spending bill at the last minute.When I found out my flight to Paris had been canceled, I decided at the last minute to fly to Hawaii instead.