Change date preferences from System Profile function directly

Although the best way for changing date preferences for an especific user is using the Preference link at logging page, see below:

but sometimes user has defined default quick load to form directly  so he cannot access to the preferences page. In this case, your Administrator can change from:
Responsability: System Administrator
Function:System | Profile.
Filter: User (user desired), Profile: ICX: Date Format Mask , keep Enable Profiles with no values

Important: Change System Profile Value is a very powerful tool, however an incorrect use can cause side effects.