Oops, it doesn't look like 'Team World Cup Media day' is a national day..

Other days

camera

Camera Day
donate your hair

Donate Your Hair Day
promposal

Promposal Day
singles

Singles Day
tulip

Tulip Day
cuddle up

Cuddle Up Day
pick me

Pick Me Day
gum

Gum Day
book

Book Day
offer

Offer Day