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

Other days

hoodie

Hoodie Day
nae nae

Nae Nae Day
coffee

Coffee Day
latina equal pay

Latina Equal Pay Day
stud

Stud Day
martini

Martini Day
one

One Day
fiancee

Fiancee Day
bow tie

Bow Tie Day
boyfriend

Boyfriend Day