Set Different Dates On Dual Boot?

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  1. Posts : 196
    Windows 10 x64 (Version 20H2) Updated
       #1

    Set Different Dates On Dual Boot?


    I have a multi-boot (10, 7 & XP) system and would like to change the date on 7 or XP to Feb. 2012. Is it possible? With all the utilities out there, surprised I could not find any on line. Thought with virtual-everything these days, there should be a utility to control the date on the other OS. Just checking if it is possible. Will still keep the main OS (Win10) at current date and time (Time Zone).
    Thanks in advance.
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  2. Posts : 18,424
    Windows 11 Pro
       #2

    Windows 7 and Windows XP should both have options in the adjust date and time settings to turn off automatic time setting over the internet. The problem, I believe, is that the operating system also updates the system clock in bios/UEFI. So when you boot into Windows 10, it would change the system clock in bios/UEFI to the current time. Then when you return to Windows 7 or XP, upon booting the OS would read the system clock in bios/UEFI and startup with that date/time setting.
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  3. Posts : 15,028
    Windows 10 IoT
       #3

    NavyLCDR said:
    Windows 7 and Windows XP should both have options in the adjust date and time settings to turn off automatic time setting over the internet. The problem, I believe, is that the operating system also updates the system clock in bios/UEFI. So when you boot into Windows 10, it would change the system clock in bios/UEFI to the current time. Then when you return to Windows 7 or XP, upon booting the OS would read the system clock in bios/UEFI and startup with that date/time setting.
    Ditto. If you turn off time sync, and then adjust the time manually, it will likely get set in the BIOS to match. Then on the next boot into Windows 10, it will sync and reset it to the correct time and date. Wash rinse and repeat. Why Feb. 2012?
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  4. Posts : 9,766
    Mac OS Catalina
       #4

    Time sync has always been a PITA with Dual boots.
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  5. Posts : 196
    Windows 10 x64 (Version 20H2) Updated
    Thread Starter
       #5

    Looks like you miss-read my message. I do NOT want it to "sync". I would like Win10 to be correct time and date and XP to maintain (unsync) amd maintain and start from February 2012. Guess it is not possible since you mentioned the BIOS system time control.
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  6. Posts : 18,424
    Windows 11 Pro
       #6

    You might be able to create a powershell script or bat file that runs upon booting which resets the date/time to what you want.
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  7. Posts : 196
    Windows 10 x64 (Version 20H2) Updated
    Thread Starter
       #7

    Yep. That's what I am looking for. A bat file or a utility to install. Can't write scripts for OSs. Just wondering if anyone has come across such. Thanks though.
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  8. Posts : 18,424
    Windows 11 Pro
       #8

    I believe the bat file command for setting the date would be:

    date 02-01-2012

    The format is date mm-dd-yyyy

    Set Different Dates On Dual Boot?-capture.jpg

    Set Different Dates On Dual Boot?-capture1.jpg
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  9. Posts : 9,766
    Mac OS Catalina
       #9

    Set Different Dates On Dual Boot?


    caxtin said:
    Looks like you miss-read my message. I do NOT want it to "sync". I would like Win10 to be correct time and date and XP to maintain (unsync) amd maintain and start from February 2012. Guess it is not possible since you mentioned the BIOS system time control.
    Did not misread anything. This problem has been long going with Dual boot aystems not having one OS installed sync properly, since the bios clock is affected by the first OS booted up forthe day.

    Been doing this for over 30 years and the UTC problem can only be solved if you force a clock update when logging into the OS.
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  10. Posts : 19,516
    W11+W11 Developer Insider + Linux
       #10

    Clock is physical/electronic device. OS doesn't have a clock, it just reads time/date from BIOS.
      My Computers


 

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