Oops, it doesn't look like 'cemetery on remembrance day' is a national day..

Other days

comfy

Comfy Day
tulip

Tulip Day
buddy

Buddy Day
coffee

Coffee Day
reading

Reading Day
bow tie

Bow Tie Day
lisp

Lisp Day
blanket fort

Blanket Fort Day
ask out your crush

Ask Out Your Crush Day
brow

Brow Day