Oops, it doesn't look like 'old joke day' is a national day..

Other days

camera

Camera Day
lisp

Lisp Day
nail polish

Nail Polish Day
pumpkin

Pumpkin Day
believe

Believe Day
ask out your crush

Ask Out Your Crush Day
bow tie

Bow Tie Day
prosecco

Prosecco Day
ruby

Ruby Day
carpenters

Carpenters Day