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

Other days

nae nae

Nae Nae Day
carpenters

Carpenters Day
boy friend

Boy Friend Day
cuddle up

Cuddle Up Day
hoodie

Hoodie Day
fiancee

Fiancee Day
self care

Self Care Day
pumpkin

Pumpkin Day
martini

Martini Day
pampering

Pampering Day