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Windows 7: why won't Win 7 prox64 keep time right

12 Jun 2013   #1

Windows 7 Pro 64 bit
why won't Win 7 prox64 keep time right

After booting into Windows from restart the clock changes by 5 hours, and jumps to the next day. Time zone is properly set, battery on mobo is good, BIOS clock is set properly, and Ubuntu 12.04LTSx64 is always right. This almost always occurs after booting into windows the next day, sometimes the same day. GRUB/boot loader is properly set and functioning right.

My System SpecsSystem Spec
12 Jun 2013   #2

Windows 7 Ultimate x86

maybe it's because the pc time is synchronized with internet time. try unchecking the box of using internet time, then windows won't auto-adjusting the time again.
My System SpecsSystem Spec
12 Jun 2013   #3

Windows 10 Pro (x64)

The issue is Linux. It is changing the BIOS time to UTC while Windows expects the time to be Local in the BIOS.
My System SpecsSystem Spec

17 Jun 2013   #4

Windows 7 Pro 64 bit

I'm sorry to have to tell you LogicEarth that you are not correct. My Ubuntu 12.04LTSx64(PrecisePangolin) sets the clock properly every time on startup from reboot or power on. It's Windows 7 Prox64 that's hatched a big fat egg. Whenever I reboot to Ubuntu the clock returns to my local time after startup sequence finalizes. Whenever I reboot to Win 7 the clock makes a 5 hour leap ahead. Only by re-sycning the clock through "internet time" or manually changing the clock settings will this Microsoft desktop display the right time for where the computer is set up. One other thing I noticed, which may be related to my "Time warp" problem, is that the desktop clock freezes at the time the screensaver kicks in, and the clock resets to "real time" after the screensaver is defeated.
Windows 7 was installed on a brand new, virgin 1TB Seagate Barracuda hdd. Ubuntu is installed on a separate 500GB Samsung hdd. Only the Samsung hdd is recognized by my ASUS mobo as a bootable drive, the 1TB Seagate only shows up in the boot loader (GRUB) and boots without any other drama when called upon.
My System SpecsSystem Spec
18 Jun 2013   #5

Windows 10 Pro (x64)

Clearly you missed something important here. Ubuntu by default sets the clock in the BIOS to UTC. While Windows is expecting it to be Local time. When you boot into Ubuntu it is changing the time in the BIOS to UTC. Aka., 5+ hours ahead.

To make it extra clear. I am talking about the BIOS, what happens before Windows or Ubuntu even gets a chance to boot up.
My System SpecsSystem Spec
18 Jun 2013   #6

W7 Ultimate SP1, LM19.1 MATE, W10 Home, #All 64 bit

I've seen Live Ubuntu CDs do this, but my actual installs (Ubuntu and now Linux Mint) never do it.

That said, it may be worth checking your clock/time zone settings in Ubuntu.
I've never had to adjust them in Ubuntu and Linux Mint (i.e. they are/were still set to the settings that were set during the install).
My System SpecsSystem Spec

 why won't Win 7 prox64 keep time right

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