tag:blogger.com,1999:blog-3993498847203183398.post611353585959888115..comments2024-03-19T09:14:24.926+00:00Comments on RevK<sup>®</sup>'s ramblings: Daylight Saving TimeRevKhttp://www.blogger.com/profile/12369263214193333422noreply@blogger.comBlogger15125tag:blogger.com,1999:blog-3993498847203183398.post-12356178247594856222015-11-04T11:36:34.150+00:002015-11-04T11:36:34.150+00:00I'm happy enough with a device that I know def...I'm happy enough with a device that I know definitely does not, or a device I know definitely does. What catches me out is things like dumbphones and Windows that might or might not get it right...Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3993498847203183398.post-28715289719322300832015-10-30T21:53:20.791+00:002015-10-30T21:53:20.791+00:00"'W' changed the dates claiming it wo..."'W' changed the dates claiming it would save energy by using more daylight. Moron."<br /><br />To be fair, it wasn't *his* stupidity there, and the official figures afterwards did claim the changed dates did indeed reduce electricity consumption very slightly.<br /><br />I was happy to find that several places in the US have taken initial steps towards opting out of DST, as Arizona, Hawaii and the various territories (Puerto Rico etc) already do. Let's hope that catches on.<br /><br />This page is the second place this month I've seen someone repeating the erroneous claim that it's GWB's fault that the US changes on a different date to the EU. Nice to see it getting rebutted promptly, of course.jas88https://www.blogger.com/profile/05563592458314214904noreply@blogger.comtag:blogger.com,1999:blog-3993498847203183398.post-54334342048991667722015-10-29T23:01:01.446+00:002015-10-29T23:01:01.446+00:00Even before 'W' interfered, US dates for D...Even before 'W' interfered, US dates for DST were not the same as the EU. They used to be first Sunday in April for going forwards whereas we are last Sunday in March. We used to agree going forwards.<br /><br />'W' changed the dates claiming it would save energy by using more daylight. Moron.Owen Smithhttps://www.blogger.com/profile/00890951742186614705noreply@blogger.comtag:blogger.com,1999:blog-3993498847203183398.post-2097828654865535432015-10-29T22:58:18.368+00:002015-10-29T22:58:18.368+00:00Indeed, the long term average of 50Hz mains in the...Indeed, the long term average of 50Hz mains in the UK is extremely accurate.Owen Smithhttps://www.blogger.com/profile/00890951742186614705noreply@blogger.comtag:blogger.com,1999:blog-3993498847203183398.post-46437572267010172132015-10-29T17:20:19.524+00:002015-10-29T17:20:19.524+00:00Oh, agreed. I rely on my watch or my NTP-running c...Oh, agreed. I rely on my watch or my NTP-running computers first and foremost -- and my watch is synched to the radio signal (the one which used to be the Rugby signal before it moved, uh, somewhere else). Of course my watch reliably fails to get a signal on days when the clocks change, leading to me noticing hours too late :/Nick Alcockhttps://www.blogger.com/profile/06590610308528769844noreply@blogger.comtag:blogger.com,1999:blog-3993498847203183398.post-21142618976653115322015-10-28T16:07:17.360+00:002015-10-28T16:07:17.360+00:00RevK: George Bush Jr. changed the dates the US al...RevK: George Bush Jr. changed the dates the US alter their clocks, so in the Autumn they change a week after us, in the Spring it's something like 3 weeks before us, and during those overlaps NY is 4hrs behind us instead of the usual 5.<br />I'd be happy if we stuck to GMT throughout the year - at least you know when the Sun is overhead! If people want more daylight at one or other end of the day, they'll have to adjust their timings. The original idea of having more time for farmers is bogus - farmers work according to the daylight, or ignore it and have floodlights on their tractors!<br />HDRWhttps://www.blogger.com/profile/09148633895717850549noreply@blogger.comtag:blogger.com,1999:blog-3993498847203183398.post-7713787636340000212015-10-28T14:18:24.961+00:002015-10-28T14:18:24.961+00:00It is a shame they do not pull a signal from the 5...It is a shame they do not pull a signal from the 50Hz as a reference though. That is how I would have designed it :-)RevKhttps://www.blogger.com/profile/12369263214193333422noreply@blogger.comtag:blogger.com,1999:blog-3993498847203183398.post-25869417839008175462015-10-28T14:16:27.727+00:002015-10-28T14:16:27.727+00:00These are digital mains timeswitches. They have ba...These are digital mains timeswitches. They have battery backup so don't lose time while the mains is off, but the downside is this means they're crappy cystal based time source so not remotely accurate.<br /><br />I found the mechanical mains ones switched on or off very slowly and generated a lot of mains arcing, which interfered with Freeview and FM reception. So I replaced them with digital mains timeswitches.Owen Smithhttps://www.blogger.com/profile/00890951742186614705noreply@blogger.comtag:blogger.com,1999:blog-3993498847203183398.post-70465623213661702082015-10-28T08:05:02.192+00:002015-10-28T08:05:02.192+00:00In some ways I would prefer GMT+1 all year round a...In some ways I would prefer GMT+1 all year round as it would avoid having to cycle home in the dark - hate the sudden change. If everyone worked 8 to 4 instead then GMT would make more sense but they dontAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-3993498847203183398.post-69034295112527345882015-10-27T22:41:45.712+00:002015-10-27T22:41:45.712+00:00I think my comment just vanished. Apologies if thi...I think my comment just vanished. Apologies if this shows up twice.<br /><br />My wallclocks and such are not NTP-linked (to do this at a sane price I'll probably have to build my own), but I don't <i>rely</i> on them - if I'm in any doubt I look at my Kobo, or a laptop, or one of the IP-phones.<br /><br />All right, for "implements the Olson db" read "or is driven automatically by a machine that implements".Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3993498847203183398.post-78445514235746816192015-10-27T22:39:40.272+00:002015-10-27T22:39:40.272+00:00The key word is "rely". Sadly, my wall c...The key word is "<i>rely</i>". Sadly, my wall clocks are not driven off NTP (I think I will have to build one myself in order to make this happen at a sensible price), but I don't trust them as sources of time either. If I'm in any doubt at all, I look at my Kobo, laptop, or one of the IP-phones.<br /><br />(All right, for "implements the Olson db" read "implements or is driven directly by something that implements".)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3993498847203183398.post-2290073637171806142015-10-27T18:36:57.507+00:002015-10-27T18:36:57.507+00:00What, never? Your central heating system and wall ...What, never? Your central heating system and wall clocks and phone clocks use the Olson db? (... actually, given *your* house, quite possibly they do. But mine don't, and I have no idea how to get them to do so. And as for the mechanical clock I learned to tell the time from, which predates the Olson db by about two hundred years...)Nick Alcockhttps://www.blogger.com/profile/06590610308528769844noreply@blogger.comtag:blogger.com,1999:blog-3993498847203183398.post-69415520881879007652015-10-27T14:50:13.296+00:002015-10-27T14:50:13.296+00:00I never rely on a timekeeping device that doesn...I never rely on a timekeeping device that doesn't implement the Olson database. I usually have at least two with me.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-3993498847203183398.post-32980264214980100032015-10-27T13:37:07.036+00:002015-10-27T13:37:07.036+00:00Mains is usually OK as they adjust cycles to ensur...Mains is usually OK as they adjust cycles to ensure they average correctly, so any device using mains 50Hz to control its time should "just work". Would be fun if they tried to adjust mains cycles for BST though :-)RevKhttps://www.blogger.com/profile/12369263214193333422noreply@blogger.comtag:blogger.com,1999:blog-3993498847203183398.post-53440254345479917952015-10-27T13:34:49.645+00:002015-10-27T13:34:49.645+00:00Daylight savings time does have one useful side ef...Daylight savings time does have one useful side effect. Forcing everyone to change their clocks twice a year means the clocks are reasonably correct. My mains timeswitches drift by about 5 minutes between each DST change, so if it wasn't for DST I'd have to set another date to fix clocks eg. Easter.<br /><br />I try to buy stuff that either receives the UK atomic clock by radio or uses internet time via NTP. But I've yet to find a mains timeswitch that does either.Owen Smithhttps://www.blogger.com/profile/00890951742186614705noreply@blogger.com