A Happy Hour is an occasional event, which awards players who are logged on with either increased experience, item drop, or War Point rates. When a Happy Hour is active, an icon at the bottom right of the screen will appear. A player can hovering their cursor over the Happy Hour icon, which will display what exact bonus is being offered
Nation Leaders can also activate a Happy Hour, done so by an item called Time of Growth. At the beginning of their election term they receive 5 of these items which can be used at their will. These Happy Hours last 2 hours (they can be stacked on top of the Mothership Happy Hour upon winning an attack.