time duration

            if (indexPath.row != 2) {
                
                let session = sessionsBySection[indexPath.section][indexPath.row]
                let timeslot = agenda.days[dayIndex].timeslots[indexPath.section]
                let startTime = DateFormatter.localizedString(from: timeslot.startTime.date!,
                                                              dateStyle: .none,
                                                              timeStyle: .short)
                
                let endTime = DateFormatter.localizedString(from: timeslot.endTime.date!,
                                                            dateStyle: .none,
                                                            timeStyle: .short)
                let duration = "\(startTime) - \(endTime)"
                return duration
            }