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

Other days

first love

First Love Day
cat girl

Cat Girl Day
slime

Slime Day
nae nae

Nae Nae Day
book

Book Day
ormille

Ormille Day
offer

Offer Day
cursing

Cursing Day
bow tie

Bow Tie Day
ruby

Ruby Day