By default, in the Summary/Detail Report generated from the 'Reports' -> 'Summary' or 'Detail' menu option in the Service Desk web interface, the date format is MM/DD/YYYY.
The date format in the report is not controlled by the DateFormat parameter in the web.cfg file as the other dates in the web interface are.
See below:
CA Service Desk Manager 17.1 and higher.
In order to change the date format in the Summary/Detail Report, you need to edit the file $NX_ROOT\fig\cfg\dataent.fmt and make the following changes: