From 2:45 to 3:00 (PDT) / 9:45 to 10:00 (GMT), we will be performing emergency maintenance on the "Yahse Hunting Grounds" "Ceizak Battlegrounds" "Foret de Hennetiel" "Yorcia Weald" "Morimar Basalt Fields" "Marjami Ravine" "Sih Gates" "Moh Gates" "Cirdas Caverns" and "Dho Gates" areas. During maintenance, users will not be able to enter the area in question. Please be sure to move to another area or log out before maintenance begins.

That was announced at 1:35 (PDT), and was the earliest warning given. He said it took two hours.