Platinum passholder extra hours?

How do I find out what days season/platinum passholders get extra hours? I haven't been able to find it on the website, and I thought when we bought our passes we would get a list, but we didn't.

Thanks!

http://www.cedarpoint.com/blog-article/online-fun/Platinum-Passholder-Ride-Nights

Is this what you are talking about?

Thanks! That's just what I was looking for!