Pam, you're right! it wasn't the wolf moon, I do believe EarthSky on NPR informed me wrong... hmm..
http://www.leconte-lodge.com/hiking.html
That link should get you to the trailheads. As far as how long it will take y'all, I've seen it take people between 2hrs and 13hrs during the season depending on many factors.
There were maybe 30 people on trail yesterday, I'd imagine there to be many, many more than that today, I think my morning ritual of cooking oatmeal and listening to NPR in my skivvies, is about over.