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

Other days

brow

Brow Day
cat girl

Cat Girl Day
kiss a brunette

Kiss A Brunette Day
bubble bath

Bubble Bath Day
ormille

Ormille Day
kale

Kale Day
kiss a ginger

Kiss A Ginger Day
coffee

Coffee Day
nae nae

Nae Nae Day
china

China Day