time reverts -1 hour across multiple systems, bios battery changed!

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  1. Posts : 9,746
    Windows 7 Home Premium 64 bit sp1
       #11

    Have you actually got your time zone set for Prague & that means setting it from Time & Date & going into Change Time Zone & selecting the zone that includes Prague, or have you just manually advanced the clock by 1 hour.
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  2. Posts : 22
    Windows 7 Ultimate 64bit
    Thread Starter
       #12

    I selected time zone for prague
    Hm someone mentioned here dualboot with linux, it sometimes boot live usb, that may actually be it, because i noticed it right after using live usb.
    Still not sure, will see.
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  3. Posts : 7,101
    W7 home premium 32bit/W7HP 64bit/w10 tp insider ring
       #13

    Hi Tweaker,

    got a way out there thought

    Are you running behind a VPN that uses a different time zone.


    Roy
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  4. Posts : 3,615
    Win 10 x64, Linux Lite, Win 7 x64, BlackArch, & Kali
       #14

    Linux from live usb will definetly alter your win7 clock in taskbar (see below explanation). You'll either have to change windows time or your linux time so they match. Your Linux Live needs to have persistence to make the change to that and installed on DVD-RW BR-BE or USB media.

    Operating systems store and retrieve the time in the hardware clock located on your motherboard so that it can keep track of the time even when the system does not have power. Most operating systems (Linux/Unix/Mac) store the time on the hardware clock as UTC by default, though some systems (notably Microsoft Windows) store the time on the hardware clock as the 'local' time. This causes problems in a dual boot system or booting from live cd/dvd/br if both systems view the hardware clock differently.
    The advantage of having the hardware clock as UTC is that you don't need to change the hardware clock when moving between time zones or when Daylight Savings Time (DST) begins or ends as UTC does not have DST or timezone offsets.
    Changing Linux to use local time is easier and more reliable than changing Windows to use UTC, so dual-boot Linux/Windows systems tend to use local time.

    My dual boot Linux Lite/Win7 and Linux Lite/Win10 both behaved that way until i changed the clock settings on Linux,
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  5. Posts : 4,049
    W7 Ultimate SP1, LM19.2 MATE, W10 Home 1703, W10 Pro 1703 VM, #All 64 bit
       #15

    Snick said:
    Linux from live usb will definetly alter your win7 clock in taskbar (see below explanation).
    Agreed. :)
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  6. Posts : 22
    Windows 7 Ultimate 64bit
    Thread Starter
       #16

    Ye i downloaded program which synchronize clock after startup, hopefully it helps, i don't want persistent usb.
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  7. Posts : 25,847
    Windows 10 Pro. 64/ version 1709 Windows 7 Pro/64
       #17

    I have personally had Linux give me the same time problem a while back.
    After going to their forum and completing their fixes I still had the same time problem.

    Solved the problem by not using Linux. That has been some time ago. Maybe they have solved the problem by now.

    Jack
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  8. Posts : 4,049
    W7 Ultimate SP1, LM19.2 MATE, W10 Home 1703, W10 Pro 1703 VM, #All 64 bit
       #18

    Layback Bear said:
    I have personally had Linux give me the same time problem a while back.
    After going to their forum and completing their fixes I still had the same time problem.

    Solved the problem by not using Linux. That has been some time ago. Maybe they have solved the problem by now.
    It depends on the Linux Distro.
    In general, if you want to dual boot Linux & Windows you will need to edit a Linux config file and/or a Windows Registry key.

    Obviously a Live Linux CD/DVD can't be edited once it has been burned (although you could build a modified OS and then burn it to disc).

    You can create a Live Linux USB that can be edited (or simply install the OS to a USB).


    This wouldn't be an issue if Windows "Time Synched" on login (instead of at random).
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