Record operating hours for Disney's Animal Kingdom for April 2012?

It looks as though the first week of April is going to be especially busy this year, with the parks piling on the hours to handle the crowds.  Disney's Animal Kingdom is offering some days with park hours of 8am through to 9pm (excluding EMH), which from a quick check in the WDWMAGIC archives, appears to be a record for regular operating hours at the park.  You can see the full revised schedule at http://www.wdwmagic.com/Calendar.htm