public Data(int hours, int minutes, int seconds, bool negative)
     : this(negative ? TestObjects.CreateNegativeOffset(hours, minutes, seconds) :
            TestObjects.CreatePositiveOffset(hours, minutes, seconds))
 {
 }
 public Data(int hours, int minutes, int seconds)
     : this(TestObjects.CreatePositiveOffset(hours, minutes, seconds))
 {
 }