Linux interpret system (BIOS) time as UTC and add your timezone for current time. So, if your current time is 15:00 and timezone Europe/Paris (+2), system time is 11:00. Windows by default interpret system time as your current time.
If you want to store time in database in your timezone (Paris time), you need to set "USE_TZ = False". This is not an option, if you want to work with clients from other timezones.
If you want to use Windows and Linux on one machine with correct time, you need to set "RealTimeIsUniversal" to 1. Google it for more details on your Windows version.