| Overload | Description |
|---|---|
| Addition(TdIntervalDay,Int32) | The specified number of days is added to the TdIntervalDay. |
| Addition(Int32,TdIntervalDay) | The specified number of days is added to the TdIntervalDay. |
| Addition(TdIntervalDay,TdIntervalDay) | A TdIntervalDay is added to another TdIntervalDay. |