query.bindValue(":day_change", -QTime::fromString(aConference["day_change"],TIME_FORMAT).secsTo(QTime(0,0)));
query.bindValue(":timeslot_duration", -QTime::fromString(aConference["timeslot_duration"],TIME_FORMAT).secsTo(QTime(0,0)));
query.bindValue(":active", 1);
query.bindValue(":day_change", -QTime::fromString(aConference["day_change"],TIME_FORMAT).secsTo(QTime(0,0)));
query.bindValue(":timeslot_duration", -QTime::fromString(aConference["timeslot_duration"],TIME_FORMAT).secsTo(QTime(0,0)));
query.bindValue(":active", 1);