If the Jarrison Time Engine will not start there are a few options that can be tried. The clocking system will not function as expected if the engine is not running.
1) Check that Security is set to SQL in the INI file.
2) Confirm the JT user is working from SQL Management Studio.
3) Confirm Jarrison Time has a valid licence.
4) Windows Event Viewer can be checked for further information on the service not starting.