Oops, it doesn't look like 'single as fuck day day' is a national day..

Other days

Embarrass Your Best Friend Day

Chocolate Milkshake Day

My Little Pony Day

Lash Day

Get Funky Day

Ormille Day

Appreciate Yaself A Lil Extra Day

Blanket Fort Day

Stress Awareness Day

Tell Ur Crush You Like Them Day