Oops, it doesn't look like 'pizza party devils food cake day' is a national day..

Other days

first love

First Love Day
me

Me Day
kiss a ginger

Kiss A Ginger Day
bow tie

Bow Tie Day
ormille

Ormille Day
buddy

Buddy Day
emoji

Emoji Day
boy friend

Boy Friend Day
comfy

Comfy Day
unicorn

Unicorn Day