Aion has announced a double experience weekend for This Friday, January 22nd, at 8pm (server time), they will enable double experience. The experience bonus will run through the weekend before ending on Monday at 8am (server time).
To put the start time into context, devs have broken down what time the double experience will start on each server. Plan accordingly and enjoy the double experience!
East Coast Servers - Start Time is 8:00pm EST
Israphel, Zikel, Triniel, Lumiel, Meslamtaeda, Azphel, Marchutan
West Coast Servers - Start Time is 8:00pm PST
Siel, Vaizel, Kaisinel, Yustiel, Ariel, Fregion
Oceanic Server - Start Time is 8:00pm AEST