When is luka's vocaloid birthday?

A Vocaloid's birthday is decided and made official once every year during the same day they were released.

Technically, they have no birthday or change age officially (unless they have no age at all, its just an empty birthday) but the fandom likes to jump on this kind of stuff.

It is January 30, 2009. She was released at the age of 20 back then, it is now 2011.

Simple Math:

2009

+ 2

---------

2011 <------ 20 + 2 = 22 years old xDD

get it ? Her birthday is her release date, her age is 22 as of 2011 ^^