Oops, it doesn't look like 'cemetery to pay their respects ahead of memorial day' is a national day..

Other days

Ask Out Your Crush Day

Blanket Fort Day

One Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Get Funky Day

Ormille Day

Prescription Drug Take Back Day

Aloxolt Day

Kiss A Brunette Day

Donate Your Hair Day