Oops, it doesn't look like 'debt all at once in one day' is a national day..

Other days

Lost Sock Memorial Day

Law Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Chocolate Milkshake Day

Kiss A Brunette Day

Unicorn Day

Azonto Is Acceptable Day

Mean Girls Day

Nae Nae Day

Lumpy Rug Day