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

Other days

carpenters

Carpenters Day
gallery

Gallery Day
offer

Offer Day
ponytail

Ponytail Day
hannah

Hannah Day
azonto is acceptable

Azonto Is Acceptable Day
ruby

Ruby Day
cuddle up

Cuddle Up Day
kiss a brunette

Kiss A Brunette Day
aloxolt

Aloxolt Day