Amount of years until a track is considered a classic?

[PegaSus]

But its only 7 years old ;-)

Oh mai gauwt.. and now?

[Voci]

Oh mai gauwt.. and now?

It means I am right and you were wrong buahahaha, Voci feeels soo good yeaaah!

[Ferhat Jeena]

Id say it all depends on what a song does for you.. but, IMO you have to give it atleast 7-8 years before you can start calling it a 'classic'.
An example would be Gaia - Tuvan, thats a TUNE! probably one of the best for its time. but you can really call it a classic, if you consider Carte Blanche to be a classic. The two cant go in the same category.
Just my two cents

[engineKUBWA]

I hate when I'm listening to livesets when all of a sudden

lol danielvansand listening to livesets in the buff