1. day for night - Noun
2. day for night - Adverb
day for night (uncountable)
(film) A cinematographic technique in which a crew films in a high-contrast situation, typically in the early morning or late afternoon, with a blue filter, causing the scene to look as if it were shot in moonlight.
day for night (not comparable)
(cinematography) In the daytime, with a blue filter, causing the scene to look as if it were shot in moonlight.
The Sandcrawler scene in Star Wars Episode IV: A New Hope was shot day for night.