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

Other days

bubble bath

Bubble Bath Day
brow

Brow Day
azonto is acceptable

Azonto Is Acceptable Day
cuddle up

Cuddle Up Day
tulip

Tulip Day
aloxolt

Aloxolt Day
stress awareness

Stress Awareness Day
african immigrant and refugee hiv and hep awareness

African Immigrant And Refugee Hiv And Hep Awareness Day
bounce

Bounce Day
tell ur crush you like them

Tell Ur Crush You Like Them Day