Re: Little problem with local time.

[Johnny Billquist <bqt%update.uu.se@localhost>]

On 2014-01-15 06:00, Ottavio Caruso wrote:
> Hello, I am using a Thinkpad X61 and I dual boot more than once a day
> between Windows 7 and Netbsd 6.1.2.
>
> I am not sure if the problem is due to the BIOS or any of the two OS
> but that's what happens. Both OS are configured for local time CET
> (GMT+1). If I sincronize any of the two OS to internet time (ntp) the
> clock will stay fine until I reboot into the other OS, in which case
> the clock will go back to GMT.
>
> If I manually set the BIOS to the correct time, when I boot again the
> clock goes to GMT+2.
>
> So I am not sure if I have to change anything else in the BIOS.
>
> Bear in mind that I use wi-fi, so I can't set ntpdate at boot because
> it would not connect (I've tried).
>
> Any suggestion to solve this little but fastidious issue is appreciated.

The problem is that Windows actually keep the RTC in local time, while 
NetBSD keeps it in UTC. Last I looked, there was a kernel option to tell 
that the RTC was actually not on UTC, which will more or less help you, 
but there is no perfect solution.

        Johnny