Oops, it doesn't look like 'obliviouswalk with your head up your ass day' is a national day..

Other days

Lisp Day

Carpenters Day

Hoodie Day

Reading Day

Girl Friend Day

Appreciate Yaself A Lil Extra Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Pumpkin Day

My Little Pony Day

Boba Day