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

Other days

book

Book Day
polyamory

Polyamory Day
ormille

Ormille Day
gum

Gum Day
law

Law Day
nail polish

Nail Polish Day
ride the wind

Ride The Wind Day
boba

Boba Day
tell a fairytale

Tell A Fairytale Day
stud

Stud Day