Oops, it doesn't look like 'back in the closet day' is a national day..

Other days

Carpenters Day

Slime Day

Singles Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Prosecco Day

Tell A Fairytale Day

My Little Pony Day

Tell Ur Crush You Like Them Day

Frozen Yogurt Day

Kale Day