blink of an eye vs New York minute

blink of an eye and New York minute both are nouns.

Word	Noun	Adjective	Verb	Adverb
blink of an eye	Yes	No	No	No
New York minute	Yes	No	No	No

As nouns, blink of an eye and New York minute are synonyms defined as:

blink of an eye and New York minute: a very short time (as the time it takes the eye to blink or the heart to beat)

Other synonyms of blink of an eye include flash, heartbeat, instant, jiffy, split second, trice, twinkling, wink.

blink of an eye (noun)	New York minute (noun)
a very short time (as the time it takes the eye to blink or the heart to beat)	a very short time (as the time it takes the eye to blink or the heart to beat)