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

Other days

first love

First Love Day
aloxolt

Aloxolt Day
lost sock memorial

Lost Sock Memorial Day
cuddle up

Cuddle Up Day
brow

Brow Day
kale

Kale Day
self care

Self Care Day
gum

Gum Day
prosecco

Prosecco Day
law

Law Day