For another project, I also had to edit the time interval.
, 3 /: , - , - .
//Setting the values
durationHours.Value = (Decimal)Math.Floor (data.TotalHours);
durationMin.Value = data.Minutes;
durationSeconds.Value = data.Seconds;
//Getting the values
data = new TimeSpan((int)durationHours.Value, (int)durationMin.Value, (int)durationSeconds.Value);