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

Other days

tell a fairytale

Tell A Fairytale Day
bow tie

Bow Tie Day
healing

Healing Day
martini

Martini Day
one

One Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
cuddle up

Cuddle Up Day
ormille

Ormille Day
kiss a brunette

Kiss A Brunette Day