Oops, it doesn't look like 'cemetery closed to all but family pass holders on memorial day' is a national day..

Other days

Unicorn Day

Special Education Day

Tell Ur Crush You Like Them Day

Boy Friend Day

Nae Nae Day

Hot Chocolate Day

Cursing Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Book Day

Promposal Day