i would say trials can be done in 10 (5 afk,5 semi-afk) hours when you are pretty lazy and u stuck in trial 6 with farming, but the reward is awesome (400/500 ec=1 hour-non afk) cause you get like 2.6 k ec - 4 k ec depending if u finish trial 7 with 666+ and get hepatizone whetstone pouch from chests.