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

Other days

comfy

Comfy Day
boyfriend

Boyfriend Day
cursing

Cursing Day
prosecco

Prosecco Day
my little pony

My Little Pony Day
lost sock memorial

Lost Sock Memorial Day
believe

Believe Day
bubble bath

Bubble Bath Day
slime

Slime Day
ormille

Ormille Day