Recently, we met an issue about the time sync on windows 10. For Example: The windows is running at 2021-02-17. Then, restart the computer, before loading the windows, entering the BIOS screen, then modify the time to 2020-02-17, save and restart again. After the windows startup, check the windows system time, it is 2021-02-17. If BIOS time modified to 2021-02-19, then the windows will change the time to 2021-02-19. It seems that the windows 10 donot sync the back time from BIOS. Based on the experience of Windows 7, the windows always get the time from BIOS on every restarting and then sync the time from network if a time server configed.
I want to know is it a design on Windows 10 or a wrong configuration of my windows 10 1809?