Oops, it doesn't look like 'Museums Shut For Second Museums Are Shut For A Second day' is a national day..

Other days

Cursing Day

Prescription Drug Take Back Day

Lost Sock Memorial Day

Eat What You Want Day

First Love Day

Special Education Day

Stud Day

Ride The Wind Day

Raise Awerness Of Zeus Day

African Immigrant And Refugee Hiv And Hep Awareness Day