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

Other days

ruby

Ruby Day
martini

Martini Day
azonto is acceptable

Azonto Is Acceptable Day
youth

Youth Day
self care

Self Care Day
ride the wind

Ride The Wind Day
china

China Day
slime

Slime Day
camera

Camera Day
pumpkin

Pumpkin Day