Well i'm not an expert or anything but I think the best time is to wait for November to come... I'm not sure if you should wait for BEFORE Black Friday or AFTER, but ppl will be in the spending mode for Christmas and willing to hunt down the bargains.
I know it's a long time to wait for November to come but it's back-to-school season now and ppl spent a lot of money on laptops, new work clothes, new this and that so that's probably why it's been pretty slow since August till now. If anything, I think you mite be safe to start selling in October too.
If you're asking about literally what time to list auctions, i always list on the weekends, anywhere from 7 to 11pm so ppl will most likely be at home to sit at their computers and stalk my auctions. lol. And I always make it 7 days.