Oops, it doesn't look like 'sorrow every damn day' is a national day..

Other days

Lost Sock Memorial Day

Kiss A Brunette Day

Chocolate Milkshake Day

Carpenters Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Lumpy Rug Day

Ponytail Day

Martini Day

Hiv Awareness Day

Hot Chocolate Day