Oops, it doesn't look like 'not txt back day' is a national day..

Other days

polyamory

Polyamory Day
bow tie

Bow Tie Day
lisp

Lisp Day
donate your hair

Donate Your Hair Day
ponytail

Ponytail Day
hannah

Hannah Day
tulip

Tulip Day
emoji

Emoji Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
me

Me Day