The hours are here on the DISboards. Scroll to the top of the page and click on Park Hours. But last time I checked, the extra Sprectros were only posted on the official Disney site. Perhaps someone has had a chance to update the site, it does keep changing like crazy.
We'll arrive on property (first stay as DVC owners -- snagged a standard 1 br at BWV on Sun the 17). I'm hoping to get over as quickly as possible to Soarin' and then at night we have PS at 'Ohana.