This Natural profile parameter is used to adjust the current machine date (as read by using the internal machine time) by adding/subtracting any number of days to/from it. This makes it possible to re-run an application that was to be run at a certain date but for some reason could not be run at that date.
The DD profile parameter is specified as
                  		  follows:
               
| DD=+nn | 
or
| DD=-nn | 
where nn is the number of days.
| Possible settings | -10953to+10953 | Machine date is adjusted. Specification of "+" is optional. | 
|---|---|---|
| 0 | No adjustment is made. | |
| Default setting | 0 | |
| Dynamic specification | yes | |
| Specification within session | no | |
| Application programming interface | USR1005N | See SYSEXT - Natural Application Programming Interfaces in the Utilities documentation. | 
See also the profile parameter TD.