I dont get your first report, it's decimal hours..
1.0 hours = 60.0 mins
0.34 hours = 20.4 mins
0.71 hours = 42.6 mins
so,
1.34 hours = 1 hour & 20.4 minutes
1.71 hours = 1 hour & 42.6 minutes
maybe i will change it to a more readable format..
About the second report, the players team ID are changed to 255( act as free team ) once they enter duel/events so that they can kill each other even they were from same team. If it's not done, the players cant hurt each other because team-killing is disabled in server. As team chat depends on team ID, the team chat you will be using during event/duel will be of team 255( free team ).