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

Other days

nae nae

Nae Nae Day
book

Book Day
bow tie

Bow Tie Day
boy friend

Boy Friend Day
hannah

Hannah Day
self care

Self Care Day
kale

Kale Day
cat girl

Cat Girl Day
cuddle up

Cuddle Up Day
lisp

Lisp Day