Oops, it doesn't look like 'no rhyme nor reason day' is a national day..

Other days

African Immigrant And Refugee Hiv And Hep Awareness Day

My Little Pony Day

Carpenters Day

Unicorn Day

Chocolate Milkshake Day

Bubble Bath Day

Lost Sock Memorial Day

Believe Day

Raise Awerness Of Zeus Day

Bonang Day