WARNING USE WITH CAUTION!
This troubleshooting need to configure your bios clock time setting. It's always indicate that your motherboard battery is out (whether laptop or desktop).
- You need to press F2, F8 or F12 depend on your mobo type. After that you will be greeted with Bios Setup Utility. From there, search for system time and date configuration and set it to your desire time and date. Then, try to save the configuration and exit. Restart your system. For laptop please remove the battery. Different make different interface.
2.After the restart everything should be ok, if the time/clock still display wrong time then go to step 3.
3.You need to change the bios battery. You can do it yourself or sent it to technical person for change to new battery. It is common problem and usually this fix is working for both windows and Ubuntu.
Thank you. It had save me a lot time, hope it will do the same to you.