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

Other days

boba

Boba Day
hannah

Hannah Day
ormille

Ormille Day
hoodie

Hoodie Day
get funky

Get Funky Day
cuddle up

Cuddle Up Day
kiss a brunette

Kiss A Brunette Day
pumpkin

Pumpkin Day
pick me

Pick Me Day
gum

Gum Day