Oops, it doesn't look like 'arboretum for remembrance day' is a national day..

Other days

buddy

Buddy Day
blanket fort

Blanket Fort Day
fiancee

Fiancee Day
stress awareness

Stress Awareness Day
self care

Self Care Day
hannah

Hannah Day
my little pony

My Little Pony Day
me

Me Day
hiv awareness

Hiv Awareness Day
chocolate milkshake

Chocolate Milkshake Day