As most players noticed, Moonlight Enchantments failed to turn on at the scheduled time last night.  The gnomes have had the ale tankards pried from their hands and the event is now live!  Glip the Gnome, EQII Associate Producer,  also posts: 

We've added an extra day to the event this month as well. They will turn off on 10/22 at 11:59pm PDT instead of 10/21 at 11:59pm

Enjoy!