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

Other days

ormille

Ormille Day
polyamory

Polyamory Day
martini

Martini Day
comfy

Comfy Day
stud

Stud Day
get funky

Get Funky Day
prosecco

Prosecco Day
self care

Self Care Day
cuddle up

Cuddle Up Day
gum

Gum Day