Solved Clock problem with two OS

[Arc]

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 :sarc:

How can I fix it ?

Thanks in advance

 

[sygnus21]

That's a wierd one. Have you checked/replaced the CMOS battery? You might give that a try.

 

[Shadowjk]

What Time does your BIOS Say before you boot back into Windows

 

[Arc]

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 !

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 :sarc:

EDIT : BTW, my timezone is GMT+5:30 hrs . Is it taking effect anyhow ? And I have installed Ubuntu just a few hours ago .

 

[FredeGail]

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:

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

 

[sygnus21]

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.

 

[Arc]

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

 

[FredeGail]

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

Cheers!
FredeGail

 

[sygnus21]

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

 

[FredeGail]

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