Another thing: If your clock is giving time that's an hour ahead ofTrue Local Solar Time (French Hours), then, to get clock time, you still have to add he equation-of-time. Looking that up is more work than just adding an hour. So no significant clock-time-ease is gained by making your dial an hour ahead of LTST.
(Unless you're really going all-out, and making a clock that automatically deals with Eq.T, and reads directly in Standard Time or DST--But, as I said, why do it???.) Michael Ossipoff On Fri, Aug 31, 2018 at 10:09 PM Michael Ossipoff <email9648...@gmail.com> wrote: > > One more thing: In the U.S., the time-zone boundaries usually or at least > nearly always follow state boundaries. That results in some extremes that > result in people being out unnecessarily in the dark. So, instead, the > time-zone boundaries should be meridians. The intended time-zone > middle-meridians would be the middle-meridians, and the boundaries would be > the meridians 7.5 degrees east and west of that middle-meridian. > > In the U.S., the middle-meridians should and would be 75, 90, 105, and 120 > west longitude. > > Europe, too, would surely benefit from meridians instead of > country-boundaries as time-zone boundaries. > > Oh, and just one more thing: > > Why would you want a sundial to tell clock-time??? > > If you want clock-time, put up a clock. > > Sundials give a time that a clock doesn't give: Local True Solar Time. > LTST is of interest. ...aesthetic and practical. More meaningful in every > way, in fact, other than business and other interpersonal affairs, for > which Standard-Time is convenient. > > Of course LTST is also called French Houirs. > > If you want a sundial to tell other kinds of time, Babylonian hours &/or > Co-Italian hours are of interest, for their own sake, in addition to having > practical relevance. > > Michael Ossipoff > > Michael Ossipoff > > > > On Fri, Aug 31, 2018 at 10:21 AM Douglas Bateman via sundial < > sundial@uni-koeln.de> wrote: > >> Diese Nachricht wurde eingewickelt um DMARC-kompatibel zu sein. Die >> eigentliche Nachricht steht dadurch in einem Anhang. >> >> This message was wrapped to be DMARC compliant. The actual message >> text is therefore in an attachment. >> >> >> ---------- Forwarded message ---------- >> From: Douglas Bateman <douglas.bate...@btinternet.com> >> To: Steve Lelievre <steve.lelievre.can...@gmail.com> >> Cc: Sundial list <sundial@uni-koeln.de> >> Bcc: >> Date: Fri, 31 Aug 2018 15:21:02 +0100 >> Subject: Re: EU backs ending Daylight Saving Time >> Steve, >> >> Looking at the report, the headline should surely read EU backs >> *permanent* daylight saving time. >> >> The term daylight saving could then be dropped. >> >> During these debates and arguments many forget to ask the question (as >> Brian hints) as to why DST and Double DST was introduced in WW1 and WW2. >> >> Regards, Doug >> >> On 31 Aug 2018, at 14:37, Steve Lelievre <steve.lelievre.can...@gmail.com> >> wrote: >> >> >> One of the annoying parts of sundial design is having to decide whether >> to accommodate Daylight Savings Time or not, so I'm pleased to hear that >> the EU Commission is proposing to do away with it. See BBC's report at >> http://www.bbc.co.uk/news/world-europe-45366390 >> >> I hope they go through with it, and non-EU countries follow their lead. >> >> In Canada we even have the ridiculous situation that some locales use DST >> and some do not, even within the same province. Madness! >> >> Steve >> >> >> --------------------------------------------------- >> https://lists.uni-koeln.de/mailman/listinfo/sundial >> >> >> --------------------------------------------------- >> https://lists.uni-koeln.de/mailman/listinfo/sundial >> >>
--------------------------------------------------- https://lists.uni-koeln.de/mailman/listinfo/sundial
