Haha. What an upgrade. At least you can even play the game. I can't even imagine the explosion from the fan base when an English beta is announced.

I'm not sure what you're looking at there, it says all day for 3/5 of the days. The first day is 10 hours and the last is 8 hours.

Also, I don't think it's officially called an open beta, just the 3rd test (it was called "OBT" when we first heard about it, but they've calling it "open" since).

So, the first day will only be 10 hours?

10 hours followed by 24 hours x 3 followed by 8 hours. 90 hours of consecutive play possible.

Ok that makes more sense. I've just assumed Open Beta was different for everyone. So it isn't an open beta.

For those that don't understand Citrinate's explanation: it will start at 1AM EST as in calendar and end in sunday without pause. It's just that it will not start 0:01 of 9th December but later, so that's why it's 10 hours of 9th december and 3 full 24h days and 8hours of sunday ;3

I understand it better that way ;P

Well, considering that they are accepting everyone, it seems to be an open beta.

But what I don't understand is why they are still asking for a KSSN when creating a netmarble account if anybody can get in, even those under the age of 15.

That doesn't have to do with beta, that's just how you have to register in Korea.
It's not exclusive to beta, or this game.

Read my guide on creating a Netmarble account for why you need the KSSN. Just about everything Korean needs a KSSN on the internet.