This property only has an influence on the process of saving data to the AppointmentStorage.DataSource object and on export operations. All properties of the C1.Schedule.Appointment and C1.Schedule.RecurrencePattern objects represent current system local time values. Set this property to DateTimeLind.Utc if you need to save data with universal time. In such case the data will be converted to the local time and back at every read/write operation.