Tribute bonus quest

Just curious. Does anyone else get the tribute quest (where you have to find 30 tributes) right before they go to bed? It happens to me all the time. I get it at 9.30pm play for tributes once and go to bed. The next morning I have about 3 hours left to find something like 20 tributes or sometimes more. The only way I can finish the quest is to buy extra tributes. It really annoys me.