Duuuuuuude! Like, here's a riddle: what do the years 1987 and 2013 have in common?

[Gnarly Surfer Dude Guy]

See if you can guess, Duuuuuuude!
Didh't think about the 13 years apart from the year 2000 part, Duuuuuuudes! But that's not the answer I'm looking for!

Hint: look at the years in between.

 

[☆bow chicka wow wow☆]

i give up dude

 

[Bon Bon]

This was the last year until 2013 with four distinct digits.

 

[vισℓєт ☮]

Dude, I don't know.

 

[The One]

Their both exactly 13 yrs apart from the year 2000 each going the opossite directions

 

[Just Me]

They're both 13 years away from the year 2000, duuuude!