User blog comment:Dragonjet/KanColle Command Center/@comment-75.112.131.162-20140706045225/@comment-180.190.5.32-20140706121459

yea sorry about that. I know expeditions end 1 minute, that is what I've known all this time.. However when I re-read the Expeditions page, it said 1 minute and 30 seconds. so I was mislead and released the timers to go off 1:30 early.

Source: http://kancolle.wikia.com/wiki/Expedition#comm-83202

I'll fix this on the next update.