public int AddDuration(JwDuration e)
{
return SetOrdinal(_ordinal + e.GetTotalMilliseconds());
}
public void SubtractDuration(JwDuration d)
{
int i = _time.SubtractMilliseconds(d.GetTotalMilliseconds());
_date.SubtractDays(i);
}
public int SubtractDuration(JwDuration e)
{
return SetOrdinal(_ordinal - e.GetTotalMilliseconds());
}
public void AddDuration(JwDuration d)
{
_date.AddDays(_time.AddMilliseconds(d.GetTotalMilliseconds()));
}
