> Does anybody know how many other places use the same rules? What does Canada do?
https://en.wikipedia.org/wiki/Daylight_saving_time_by_country --- Graham == On Tue, Jan 1, 2019 at 4:05 PM Hal Murray <hmur...@megapathdsl.net> wrote: > > > GPS has no bits for Daylight Savings. As far as I know only WWV and WWVB > > have those bits. So for a clock displaying local time WWVB is the way to > go. > > WWVB's DST data is targeted at the US. > > Does anybody know how many other places use the same rules? What does > Canada > do? > > Has anybody looked into how much code it takes to implement DST? If you > are > willing to stick to one set of rules, you could pre-compute a small table > to > cover the next 20 (or 100) years. That's probably not good enough for a > product, but OK for most home brew clocks. Can I get to 2100 with only 28 > slots? (7 for day-of-week, and 4 for leap years) > > The full Unix time conversion package is pretty big if you are of running > it > on a tiny SOC. Has anybody implemented a slimmed down version? How slim > can > you get if all you want is DST? > > Besides, GPS gives you leap second warning. > > A while ago, somebody asked why use WWVB rather than GPS? One answer is > so we > can monitor what it does when a leap second happens. > > > > > -- > These are my opinions. I hate spam. > > > > > _______________________________________________ > time-nuts mailing list -- time-nuts@lists.febo.com > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
