[flexcoders] local date is wrong

[Link Mckinney]

I am just simply trying to set a simple date

var longdate:Date = new Date(2030,12,30);

this suppose to set longdate to 2030-12-30 but insead it creates

Thu Jan 30 00:00:00 GMT-500 2031

Why can't I just create a simple date based on what values I give it?wtf

thanks Link