Oops, it doesn't look like 'rule that if u r an alumni of school playing in the ncaa tournament you should get a free off day' is a national day..

Other days

Ruby Day

Tulip Day

Boba Day

Chocolate Milkshake Day

Girl Friend Day

Gum Day

Appreciate Yaself A Lil Extra Day

Martini Day

Bounce Day

African Immigrant And Refugee Hiv And Hep Awareness Day