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

Other days

singles

Singles Day
boy friend

Boy Friend Day
coffee

Coffee Day
martini

Martini Day
buddy

Buddy Day
pumpkin

Pumpkin Day
nae nae

Nae Nae Day
first love

First Love Day
bow tie

Bow Tie Day
offer

Offer Day