the latest possible time before an important event（重大事情前的）最后一刻，紧要关头- They changed the plans at the last minute.事到临头他们却改变了计划。
- Don't leave your decision to the last moment.别等到最后一刻才来作决定。
- Don't leave everything till the last minute.别把什么事都拖到最后一刻。
- Why do you leave it until the last possible moment before getting ready to leave?你为什么非得等到最后一刻才为动身作准备呢？
See also last | minute | moment