Oops, it doesn't look like 'As His OwnFor A day' is a national day..

Other days

stress awareness

Stress Awareness Day
cuddle up

Cuddle Up Day
bow tie

Bow Tie Day
artists

Artists Day
pampering

Pampering Day
hoodie

Hoodie Day
nae nae

Nae Nae Day
camera

Camera Day
singles

Singles Day
comfy

Comfy Day