Oops, it doesn't look like 'aviation soft ice cream day' is a national day..

Other days

Nail Polish Day

Raise Awerness Of Zeus Day

Prescription Drug Take Back Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Tell Ur Crush You Like Them Day

Fiancee Day

Boba Day

Law Day

Lash Day

Stress Awareness Day