You may need to fix the registry inside Windows.  Side_Step_Society tells you how “Change both OS’s to their proper time zones, then try this in Windows

Run > RegEdit

Find;
HKEY_LOCAL_MACHINE > SYSTEM > CurrentControlSet > Control > TimeZoneInformation

Add key ( REG_DWORD type );
RealTimeIsUniversal

Double-click and set value to 1

Then, do a couple restarts between the OS’s so they “Sync” and your time should stay correct. “