adverb

du jour au lendemain

/dy ʒu.ʁ‿o lɑ̃.d(ə).mɛ̃/

adverb/dy ʒu.ʁ‿o lɑ̃.d(ə).mɛ̃/

from one day to the next, overnight (very rapidly)

du jour au lendemain — French Dictionary | Passage