<div class="gmail_quote">On Sun, Oct 31, 2010 at 10:24 AM, Mick <span dir="ltr"><<a href="mailto:michaelkintzios@gmail.com">michaelkintzios@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> <div><div></div><div class="h5">On Sunday 31 October 2010 17:03:32 Graham Murray wrote:<br> > Mick <<a href="mailto:michaelkintzios@gmail.com">michaelkintzios@gmail.com</a>> writes:<br> > > MSWindows changed it to winter time when I eventually booted into it.<br> > > Gentoo wouldn't show the winter time until I had first booted into<br> > > MSWindows. If the setting CLOCK="local" is meant to make Gentoo use the<br> > > hardware clock like MSWindows does, why it did not behave the same as<br> > > MSWindows with the DST change?<br> ><br> > Gentoo uses the "CLOCK=" value when it boots. It uses this to determine<br> > the initial system time. If you set to 'UTC' then the appropriate<br> > timezone offset will be applied. If it is set to 'LOCAL' then Gentoo<br> > assumes (and it has to) that the HWClock is set to the correct local<br> > time, including the correct Daylight Saving correction.<br> ><br> > So, if Gentoo was running at the time of the clock change then the<br> > system time would have changed from Summer to Winter time. However, if<br> > Gentoo was not running and you booted it this morning then it would,<br> > legitimately, assume that HW Clock had been set to the correct local<br> > time prior to it be booted. When you booted into MSWindows, it changed<br> > the time on the HW Clock to be Winter time (ie it put it back 1 hour),<br> > so that next time you booted into Gentoo the HW clock was set to the<br> > correct local time. With CLOCK="LOCAL", when you boot for the first time<br> > after a Summer/Winter time change, Gentoo has no way to telling whether<br> > or not something else (eg MSWindows or manually via the BIOS setup) has<br> > already changed the HW clock to Summer/Winter time.<br> <br> </div></div>Thank you Graham for your very detailed reply! I understand now why the<br> problem exists. I have used the registry change suggested by Nuno on Win7 and<br> will see what gives next time DST changes. I just hope that it'll work<br> without having *both* OS shifting the clock by one hour ...<br> <br> The more I read this page[1] the more I am tempted to format MSWindows out of<br> this box whether the warranty is still valid or not!<br> <br> [1] <a href="http://www.cl.cam.ac.uk/%7Emgk25/mswish/ut-rtc.html" target="_blank">http://www.cl.cam.ac.uk/~mgk25/mswish/ut-rtc.html</a><br> --<br> Regards,<br> <font color="#888888">Mick<br> </font></blockquote></div><br>You guys had me scared for a bit. But I'm in the USA, where the change happens in<br>the morning of the first Sunday in November, which will be the 7th.<br><br>I can wait.<br><br>++ kevin<br> <br clear="all"><br>-- <br>Kevin O'Gorman, PhD<br><br>