DD - Day Differential

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# DD - Day Differential

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 | `-32767` to `+32767` | Machine date is adjusted. Specification of the plus sign (+) 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 parameters `TD` and `YD`.