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

Other days

tulip

Tulip Day
get funky

Get Funky Day
ruby

Ruby Day
frozen yogurt

Frozen Yogurt Day
ormille

Ormille Day
china

China Day
stud

Stud Day
nail polish

Nail Polish Day
ride the wind

Ride The Wind Day
one

One Day