14.10.5.1 operator +
operator+ adds the supplied structure to the supplied OracleTimeStampTZ and returns a new OracleTimeStampTZ structure.
                  
Overload List:
- 
                        operator +(OracleTimeStampTZ, OracleIntervalDS) This static operator adds the supplied OracleIntervalDSto the suppliedOracleTimeStampTZand returns a newOracleTimeStampTZstructure.
- 
                        operator +(OracleTimeStampTZ, OracleIntervalYM) This static operator adds the supplied OracleIntervalYMto the suppliedOracleTimeStampTZand returns a newOracleTimeStampTZstructure.
- 
                        operator +(OracleTimeStampTZ, TimeSpan) This static operator adds the supplied TimeSpanto the suppliedOracleTimeStampTZand returns a newOracleTimeStampTZstructure.