Oops, it doesn't look like 'want to call in sick day' is a national day..

Other days

Pumpkin Day

Ride The Wind Day

Brow Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Kiss A Ginger Day

Bonang Day

Lumpy Rug Day

Raise Awerness Of Zeus Day

Special Education Day

Cuddle Up Day