Gets a DateTime value specifying when the work item entered the workflow priority queue on the database. In the event of a failure in processing a work item, this value is reset to the system time of the failure.
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
You cannot rely on this property value to provide a reliable indication of the time at which the work item was initially pushed onto the priority queue, because the property is reset to the current system time when a processing failure occurs. This behavior also affects the sorting semantics when reprocessing the work item.