AmoK Date Wizard runs discreetly as a background process and changes the system date via mouse click to an arbitrary date. This may lead to longer/unlimited test periods of shareware programs. As a shareware author you may test if your protection mechanisms are effective. As a reverse engineer you may test if your patch is properly coded.
AmoK Date Wizard is a stand alonesoftware with a GUI but can be started via command line and from within scripts. Therefore it is possible to change the system date when you start a shareware program and automatically restore the date when you close the shareware program.