Oops, it doesn't look like 'observance of memorial day' is a national day..

Other days

African Immigrant And Refugee Hiv And Hep Awareness Day

Lash Day

Stress Awareness Day

Donate Your Hair Day

Lisp Day

Tell A Fairytale Day

Appreciate Yaself A Lil Extra Day

Pumpkin Day

Polyamory Day

Pick Me Day