Oops, it doesn't look like 'chains offering up free or discounted cups of joe for coffee day' is a national day..

Other days

Boy Friend Day

Lisp Day

Tell Ur Crush You Like Them Day

Me Day

Aloxolt Day

Kale Day

Hot Chocolate Day

Frozen Yogurt Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Slime Day