at the last minute
At the latest possible moment or opportunity. For example, Jim couldn't get a reservation because he had called at the last minute. Also see at the latest; eleventh hour.
Words nearby at the last minute
at the drop of a hat, at the end of one's rope, at the expense of, at the hand of, at the helm, at the last minute, at the latest, at the least, at the mercy of, at the most, at the outset
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.