The TASKDATE tool was developed to test applications that are sensitive to the date and time.
It permits a task with nonprivileged status (TU) to run in offset time. When this is done, all time queries from TU (GTIME, GDATE, GETOD as well as high-level language time services - not STCK) are responded to by the system with an offset time which has previously been defined by means of the SET-TASK-CLOCK command. The simulated time can optionally be inherited by successor tasks (ENTER). The system, task catalog entries and job start times continue to be based on the system time. The tool is implemented as a DSSM subsystem as well as an extension to the BS2000 time management function, JMS, SDF P, JV and openUTM. The tool can be started with system running using a supplied start procedure.