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

Other days

eat what you want

Eat What You Want Day
blanket fort

Blanket Fort Day
azonto is acceptable

Azonto Is Acceptable Day
unicorn

Unicorn Day
frozen yogurt

Frozen Yogurt Day
artists

Artists Day
bow tie

Bow Tie Day
lash

Lash Day
donate your hair

Donate Your Hair Day
me

Me Day