The date format changes in the Windows Regional Settings are not uniformally reflected across the Symantec Management Agent e.g. The Regional Date/Time settings are correctly reflected in the Agent's "Task Status" window but not in the Agent's "Settings" window.
It has been confirmed that this is only a cosmetic issue and as such does not affect any functionality of the product. The issue itself will be resolved in the upcoming SMP 7.5 release.
Symantec Management Platform 7.x