Oops, it doesn't look like 'cemetery for a special day' is a national day..

Other days

prescription drug take back

Prescription Drug Take Back Day
polyamory

Polyamory Day
artists

Artists Day
martini

Martini Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
lash

Lash Day
me

Me Day
fiancee

Fiancee Day
my little pony

My Little Pony Day
azonto is acceptable

Azonto Is Acceptable Day