Oops, it doesn't look like 'contingent to the biggest sporting games on earth arrive the games a day' is a national day..

Other days

Boba Day

Promposal Day

Lash Day

Kiss A Ginger Day

Nail Polish Day

Stud Day

Embarrass Your Best Friend Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Buddy Day

Bubble Bath Day