Oops, it doesn't look like 'show enters second day' is a national day..

Other days

bounce

Bounce Day
hoodie

Hoodie Day
nae nae

Nae Nae Day
my little pony

My Little Pony Day
brow

Brow Day
buddy

Buddy Day
tulip

Tulip Day
stud

Stud Day
kiss a brunette

Kiss A Brunette Day
camera

Camera Day