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

Other days

hoodie

Hoodie Day
bow tie

Bow Tie Day
youth

Youth Day
comfy

Comfy Day
tell ur crush you like them

Tell Ur Crush You Like Them Day
unicorn

Unicorn Day
camera

Camera Day
ruby

Ruby Day
frozen yogurt

Frozen Yogurt Day
lash

Lash Day