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Windows 7: Clock problem with two OS

19 Jun 2011   #1
Arc

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit
 
 
Clock problem with two OS

I have Windows7 and and Ubuntu installed in two different disks , but not in a dual boot set up. I use F10 button to select which drive is to boot up (intel motherboard) . After using Ubuntu , everytime when I back to windows, the system time is reduced by around 5 hours and 30 minutes . If I adjust it manually, and go back to Ubuntu, the time in Ubuntu is ok, but back to windows and the time is again reversed

How can I fix it ?

Thanks in advance


My System SpecsSystem Spec
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19 Jun 2011   #2
sygnus21

Windows 10 Pro
 
 

That's a wierd one. Have you checked/replaced the CMOS battery? You might give that a try.
My System SpecsSystem Spec
19 Jun 2011   #3
Shadowjk

Windows 7 Professional x64 SP1 ; Windows Server 2012 R2 Standard
 
 

What Time does your BIOS Say before you boot back into Windows
My System SpecsSystem Spec
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19 Jun 2011   #4
Arc

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit
 
 

Quote   Quote: Originally Posted by sygnus21 View Post
That's a wierd one. Have you checked/replaced the CMOS battery? You might give that a try.
That's a new one ... the entire system is not older than a few months . Still, as it is within the warranty period, I may contact the vendor . Actually I bought the parts and made it as a custom built , for the first time in my life Other than this issue, it works nice !
Quote   Quote: Originally Posted by Shadowjk View Post
What Time does your BIOS Say before you boot back into Windows
If I boot back to windows, it shows the normal time. If I boot to Ubuntu after windows, it shows the normal time . But if I boot to windows after using ubuntu, it shows the reduced time

EDIT : BTW, my timezone is GMT+5:30 hrs . Is it taking effect anyhow ? And I have installed Ubuntu just a few hours ago .
My System SpecsSystem Spec
19 Jun 2011   #5
FredeGail

Microsoft Windows 7 Ultimate: x64 (SP1)
 
 
Did a little Googling :)

Hello Arc.

Weird one you got there
There's someone whose got the same problem as yours right here at this thread I believe.

running ubuntu makes my windows time change [Archive] - Ubuntu Forums

Another thread:

Quote:
Ubuntu assumes that your hardware clock is set to UTC (Universal Time Coordinated).

Windows assumes that your hardware clock is set to local time.

Naturally, we're "right", but as there's apparently no way to configure Windows to use UTC for the hardware clock, you can instead configure Ubuntu to use local time for the hardware clock by modifying "/etc/default/rcS".
Read on: https://answers.launchpad.net/ubuntu/+question/2939

And finally I can explain myself. There's a solved thread right here (permalink for you )

Windows 7 time changes 7 hours after booting Ubuntu - Overclock.net - Overclocking.net

I hope this helped you,
FredeGail
My System SpecsSystem Spec
19 Jun 2011   #6
sygnus21

Windows 10 Pro
 
 

Arc it the solutions above don't work, try changing the CMOS battery, it's not that hard to do, and not overly expensive, and it's quicker than RMAing the board

However since this is a new board it is a bit unusual to have to replace the battery already so you might try the other solution first.

Good luck.
My System SpecsSystem Spec
19 Jun 2011   #7
Arc

Microsoft Community Contributor Award Recipient

Microsoft Windows 10 Pro Insider Preview 64-bit
 
 

Thanks a lot, FredeGail It is solved !!

Windows 7 time changes 7 hours after booting Ubuntu - Overclock.net - Overclocking.net -- that is done within a second
My System SpecsSystem Spec
20 Jun 2011   #8
FredeGail

Microsoft Windows 7 Ultimate: x64 (SP1)
 
 

Glad you got it fixed Arc That's great news!

Cheers!
FredeGail
My System SpecsSystem Spec
20 Jun 2011   #9
sygnus21

Windows 10 Pro
 
 

Quote   Quote: Originally Posted by Arc View Post
Thanks a lot, FredeGail It is solved !!

Windows 7 time changes 7 hours after booting Ubuntu - Overclock.net - Overclocking.net -- that is done within a second
Happy to see that fixed it for you.

Peace

And thanks
My System SpecsSystem Spec
20 Jun 2011   #10
FredeGail

Microsoft Windows 7 Ultimate: x64 (SP1)
 
 

This is the first solution thread I solved.
Feels great!

My System SpecsSystem Spec
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