Oops, it doesn't look like 'War Memorial All Lit Up For Anzac day' is a national day..

Other days

nae nae

Nae Nae Day
cursing

Cursing Day
lisp

Lisp Day
boy friend

Boy Friend Day
unicorn

Unicorn Day
emoji

Emoji Day
ride the wind

Ride The Wind Day
eat what you want

Eat What You Want Day
ask out your crush

Ask Out Your Crush Day
offer

Offer Day