Oops, it doesn't look like 'party are a bit upset day' is a national day..

Other days

ruby

Ruby Day
blanket fort

Blanket Fort Day
gum

Gum Day
lisp

Lisp Day
brow

Brow Day
special education

Special Education Day
get funky

Get Funky Day
book

Book Day
polyamory

Polyamory Day
kale

Kale Day