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

Other days

martini

Martini Day
gum

Gum Day
brow

Brow Day
aloxolt

Aloxolt Day
girl friend

Girl Friend Day
ride the wind

Ride The Wind Day
mean girls

Mean Girls Day
cat girl

Cat Girl Day
pick me

Pick Me Day
pumpkin

Pumpkin Day