day-and-night vs continuous

day-and-night and continuous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
day-and-night	No	Yes	No	No
continuous	No	Yes	No	No

day-and-night (adjective)	continuous (adjective)
at all times	continuing in time or space without interruption
	of a function or curve; extending without break or irregularity