"Empowering Advanced Learners of English in Business and Academia - TOEFL / ESL / EFL"
Video example (click "CC" to view the text as it is spoken)
At the last minute. The last chance to make a change before time is up.
Context : Education
Semantic: deadline, time
Usage of “11th hour”
Environmentalists and scientists are warning that we on earth are in the 11th hour. Global warming needs to be dealt with now or else.
Examples of idiom “11th hour” from Twitter