Oops, it doesn't look like 'run up on a clown day' is a national day..

Other days

Hoodie Day

Cuddle Up Day

Lash Day

Stress Awareness Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Chocolate Milkshake Day

Ponytail Day

Azonto Is Acceptable Day

Appreciate Yaself A Lil Extra Day

Embarrass Your Best Friend Day