adv. phr. After sleeping on it; after giving it more thought; using common sense and looking at the matter unemotionally and realistically. Lost night my ideas seemed terrific, but in the cold light of day I realize that they won't work.
IN THE COLD LIGHT OF DAY
Meaning of IN THE COLD LIGHT OF DAY in English
American idioms English vocabulary. Английский словарь американских идиом. 2012