Oops, it doesn't look like 'cemetery while remembering fallen on memorial day' is a national day..

Other days

Offer Day

Bonang Day

Embarrass Your Best Friend Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Appreciate Yaself A Lil Extra Day

Blanket Fort Day

Boba Day

Bow Tie Day

Lisp Day

Self Appreciation Day