Spongebob Squarepants' age has been a mystery for a long time and here's all you need to know about his real age.

The closest that SpongeBob SquarePants gets to confirm its eponymous ... SpongeBob sees a vision of his boating license, which lists his birthday as July 14, 1986; not too far off from the series ...

Case in point: the "Sailor Mouth" episode features SpongeBob (Tom Kenny) and his friend Patrick Star (Bill Fagerbakke) ...