Innovatoys LED binary clock

I've just bought it a month ago. I want something different. And i think this clock is what i'm looking for.

It's kinda confusing at first because I'm not really good at calculating binary.

The binary clock display the time which have binary format (means each decimal digit of hours, minutes and seconds is represented in binary. The LED switch on or off to display binary (on = 1, off = 0).

I'm deeply impressed by it. And i think it would also grab others' attention.

After awhile using this, I'm master in calculate binary. I'll buy one for my nephew. He studies physics rite now. I think it'll help him a lot.

Now, I'm confused. My poor explanation makes me confused even more! You can skip my words and look at the picture to understand.