I have been pulling my hair out over this. The date/time for Manjaro remains correct. However, on every reboot, my Windows 10 is off by 8 hours. I have reset the Windows date/time many times but it won't stay where I set it on reboot. Is there any fix for this, other than re-installing using the command line? Because I don't think I have the experience to install the entire system with the command line.