Time on my TomTom XL

Forrest58- Registered Users Posts: 1
New Seeker
edited August 2020 in Devices using TomTom HOME
i have a problem with my tomtom xl euro 22 the clock keeps going back too 12.00 even if i go back to factory settings or reboot with the on and off button, sometimes it displays the right time after setting, but after a short while reverts back to 12.00
can any one help please ??