Dual Boot system Time discapancy

[norbie]

Hi, when using a dual boot setup, I find that Windows TM is using a different way to calculate the current time. This means in the real world that whenever I start Ubuntu, the time is referenced to UTC and this I think is the problem, is setting the Hardware clock also to UTC. When I start Windows again I am offset by the amount of local Time Zone. (RTC is running UTC)
I think it would be nice to have a check routine that sets the Hardware clock back to where it was before Ububtu started.
As of now it is only annoying to me, since I don't always check the Time Indicator. Documents created under Windows have the wrong time stamp. It might however cause some major problem in Time Sensitive applications between the two Operating Systems.

I am not sure if this has been reported, but I could not find anything recent in the reports.
Therefore, I thought to raise concern about it. I have noticed this in previous releases too.

Regards,
Norbert Seibert

[Fabio Marconi (fabiomarconi)]

Hello
Have you disabled the sync with the time servers in Windows?

[norbie (nseibert)]

 Hi,
no the time sync. is enabled, however that may only occur once a week.
If you switch between the operating systems, LINUX will set the RTC to UTC,
while Windows does not check if the time zone is UTC or any of the others.
Perhaps it does, but it will run with zero offset from UTC.
In any case the RTC doesn't care what OS is booted.
Granted, one can adjust manually for it, after Windows started, however
if there
is switching back and forth between the Operating systems it will probably
stay at UTC, since the manual adjustment will be forgotten

I have UBUNTU on a portable drive (USB Bootable) and the Windows OS on a
fixed SATA. The Way I installed it is in such way that I change the Boot
sequence
in BIOS. In this way I can disable the SATA drives before I boot into LINUX.
I had some problems with LINUX modifying the boot sector on my Windows
install and don't
want LINUX to mess with it. Microsoft stuff may be real unforgiving. On
Vista and newer installations
it might even cause a Microsoft License revocation.

However, LINUX always defaults to UTC and manipulates the RTC.
Not a real bug but quiet annoying, as I stated in time sensitive
applications it may cause
trouble too, because it is off by x hours from the local time.

Regards,
Norbert Seibert

On 10/1/2010 08:22, Fabio Marconi wrote:
> Hello
> Have you disabled the sync with the time servers in Windows?
>
> ** Changed in: null
> Status: New => Invalid
>
> ** Changed in: ubuntu
> Status: New => Incomplete
>

[Fabio Marconi (fabiomarconi)]

I close this report because Windows is faulty in this side and can't work as well as Ubuntu.
remember that you can found ever windows applications in Ubuntu software manager
Thanks for the report
Fabio