Oops, it doesn't look like 'leaders in one day' is a national day..

Other days

kiss a ginger

Kiss A Ginger Day
stud

Stud Day
lash

Lash Day
self care

Self Care Day
gum

Gum Day
tell a fairytale

Tell A Fairytale Day
fiancee

Fiancee Day
cursing

Cursing Day
ride the wind

Ride The Wind Day
law

Law Day