To setup System Time and System Date you should use the first system phone (as example: the system phone connected to the first Up0/E port of your HiPath communication system), so: *95 -> Username / Password -> Select Menu 19 -> Select Submenu 13 -> Insert 4 digits Time (HHMM), select "V" (OK) then next submenù (the 14) enter 6 digits date (DDMMYY), select "V" (OK) and you should hear the confirmation double tone from the system phone.
That's it.
Regards,
Kimera.