Oops, it doesn't look like 'treasury every day' is a national day..

Other days

reading

Reading Day
lash

Lash Day
camera

Camera Day
cuddle up

Cuddle Up Day
donate your hair

Donate Your Hair Day
slime

Slime Day
kale

Kale Day
pick me

Pick Me Day
nae nae

Nae Nae Day
my little pony

My Little Pony Day