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

Other days

gum

Gum Day
cuddle up

Cuddle Up Day
pick me

Pick Me Day
first love

First Love Day
kale

Kale Day
cursing

Cursing Day
donate your hair

Donate Your Hair Day
ponytail

Ponytail Day
eat what you want

Eat What You Want Day
buddy

Buddy Day