Oops, it doesn't look like 'ChampionsWhat An Amazing day' is a national day..

Other days

promposal

Promposal Day
book

Book Day
bounce

Bounce Day
buddy

Buddy Day
offer

Offer Day
hoodie

Hoodie Day
coffee

Coffee Day
hot chocolate

Hot Chocolate Day
fiancee

Fiancee Day
stud

Stud Day