Re: Debian clock multi boot (It was: Burn 100min. (878MB) cd-data with k3b)

[Jo Shields <jo.shields@comlab.ox.ac.uk>]

antongiulio05 wrote:

> > As far as I am aware, Windows sets the hardware clock to the *local*
> > time, thus on next boot Debian will think local time is UTC, causing the
> > discrepancy.
> >    
>
> Yes, this is my exact situation.
>
>  
>
> > I'd suggest reading Chapter 16 from the Debian sysadmin manual for a
> > solution to this (specifically section 16.3):
> > http://www.debian.org/doc/manuals/system-administrator/ch-sysadmin-time.html
> >    
>
> it returns:
>
> "DOS, OS/2 and Windows except NT do not use timezones. If you need to have the correct local time in these operating systems, you have to set the clock to local time. Debian Linux can live with this and it works, but if your main operating system(s) understand timezones, use them."
>
> Is it enough set "timezone" in WinXP? Is it possible?
>
> Thanks,
> Giulio
>
>
>  
No.

Linux has a system clock and a hardware clock - the system clock is the 
hardware clock plus your timezone - where the hardware clock is GMT. 
Windows changes the hardware clock - so if your timezone is GMT+3, 
Windows will change the hardware clock to GMT+3.

As per the manual, you should configure Debian to compensate for the 
mess Windows makes of the hardware clock.

--Jo Shields