On 11/3/2012 11:31 AM, David J Taylor wrote: > -----Original Message----- From: Sarah White > Sent: Saturday, November 03, 2012 9:49 AM > > Thanks so much David... > > Really. Thanks. I feel alot better now. > > Regardless of documented issues on: > http://www.cl.cam.ac.uk/~mgk25/mswish/ut-rtc.html > > (quote) The numerous past malfunctions of Microsoft operating systems > caused by keeping local time in the RTC and trying to cleverly perform > the RTC adjustment semi-automatically have been repeatedly the subject > of concerned public discussion: RISKS 16.54.1 RISKS 18.96.3 RISKS > 19.11.16, RISKS 19.12.14 RISKS 19.43.13, RISKS 19.43.14, RISKS > 22.34.3... (multiple links) > > Not sure what timezone you're in... > > ... So I don't know which day your summer time ends this year. I'd love > to see the your loopstats file for as many of your windows boxes as > possible (with refclock, or without. Either is fine.) for the day of the > DST update this fall (and maybe any other loopstats data from when the > realtime clock got updated due to summer time / DST updates) > > According to: http://www.satsignal.eu/mrtg/daily_ntp.html > (section: Hardware and OS configuration) > > I'm assuming the relevant list is: > > feenix, stamsund, bacchus, narvik, alta, molde, ystad, puffin, and any > other NT-5.x / NT 6.x based kernel (windows machines) I missed. Wow > that's a wonderfully diverse list :) > > I actually thought about it a bit, and in hindsight I'm realizing that > internally, NTP uses a synthetic timebase anyway. Perhaps I was being > paranoid after all. > > Thanks for the reply, > Sarah White > > P.S. Your site has always had great documentation about NTP > configurations with a GPS-type reflock since I first saw it a couple > years ago. I've found it very useful. > ================================================ > > Sarah, > > There's really no issue over the hour change as NTP and Windows work in > UTC internally, nevertheless, for your interest some loopstats are here: > > http://www.satsignal.eu/ntp/2012-10-28-loopstats.zip > > I'm in UTC here, colloquially GMT/BST and we swap on the last Sunday of > October. My PCs all run with "wall clock" time displayed, and UTC > internally (just the normal Windows default). The RTC is only consulted > at system boot time, so with systems running 24 x 7 there's no issue. > None of my systems multi-boot normally, just possibly the odd test PC > may have Win-7 and Win-8 installed. > > I'm delighted that you find the site useful! > > Cheers, > David
Great, thanks for the loopstats. For the included loopstats, I believe "Alta" was among the ones on which you were running windows 7 + NTP... Would you mind confirming which setting you have for your timezone? (since I'm reasonably certain I know what the timezone menus would look like) http://inkushi.freeshell.org/bst.png http://inkushi.freeshell.org/utc.png Windows has more than one entry for most UTC offsets (DST schedule varies by hemisphere, country, some don't have summer time at all, etc.) ... so the timezone I personally have selected is the UTC option without a summer time adjustment (never set to UTC+01 / BST) ... Also, curious what you mean when you say you have "wall clock" time displayed (UTC internally) ... ? --Sarah _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
