ADD_MINUTES
                                                            Purpose
This function adds a specified number of minutes to a timestamp.
Syntax
add_minutes::=
                                                                        
                                                                    
Usage Notes
- Decimals are rounded before adding that number.
 - For data type 
TIMESTAMP WITH LOCAL TIME ZONEthis function is calculated internally within UTC before the result is transformed to the session time zone. 
Example
SELECT ADD_MINUTES(TIMESTAMP '2000-01-01 00:00:00',-1) AM1,
       ADD_MINUTES(TIMESTAMP '2000-01-01 00:00:00',+2) AM2;
                                                                Result
| AM1 | AM2 | 
| 1999-12-31 23:59:00.000000 | 2000-01-01 00:02:00.000000 |