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

Other days

believe

Believe Day
ormille

Ormille Day
boy friend

Boy Friend Day
stud

Stud Day
bow tie

Bow Tie Day
eat what you want

Eat What You Want Day
pumpkin

Pumpkin Day
tulip

Tulip Day
bounce

Bounce Day
unicorn

Unicorn Day