Oops, it doesn't look like 'cemetery in memorial day' is a national day..

Other days

china

China Day
one

One Day
hiv awareness

Hiv Awareness Day
cuddle up

Cuddle Up Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
ponytail

Ponytail Day
nae nae

Nae Nae Day
eat what you want

Eat What You Want Day
ruby

Ruby Day
bow tie

Bow Tie Day