Oops, it doesn't look like 'World Wide Web day' is a national day..

Other days

cuddle up

Cuddle Up Day
one

One Day
offer

Offer Day
boy friend

Boy Friend Day
bounce

Bounce Day
china

China Day
mean girls

Mean Girls Day
fiancee

Fiancee Day
bow tie

Bow Tie Day
kiss a brunette

Kiss A Brunette Day