Oops, it doesn't look like 'love an alien day' is a national day..

Other days

believe

Believe Day
bow tie

Bow Tie Day
gum

Gum Day
eat what you want

Eat What You Want Day
tulip

Tulip Day
one

One Day
hannah

Hannah Day
lisp

Lisp Day
healing

Healing Day
boba

Boba Day