On Fri, Aug 24, 2018 at 1:25 PM John Marvin <[email protected]> wrote: > > There's support in "over the air" ATSC digital TV signals for DST info, > but most TV stations aren't known for keeping their time information up > to date. There's a system time packet that has the GPS time, the number
RBDS/RDS (transmitted by FM broadcast stations) includes UTC and a local offset (1/2 hour intervals from -12 to +12 hours -- sorry Kiribati, Tokelau, Samoa, et al). But, in North America, like TV stations, FM stations are lucky if they have a part-time contract engineer who knows how to set up the parameters in the first place let alone make sure they stay set. No specific DST field I can see but presumably the station's RDS software package can manipulate the local offset twice a year. I'm a little surprised at the number of people on this list, of all places, that are incensed that the government won't set their clocks for them twice a year (assuming the administration's budget proposal is approved by Congress). I don't muck with non-NTP capable stuff so in my world, timezones and summer time are local display aberrations that aren't the responsibility of whichever protocol is giving you the tick (nor should they be IMO). I might also note that the US Congress has only mucked about with summer time twice since 1986. Thank goodness. Did I see someone mention actually scraping NIST's webpages for time? Why on earth would anyone do that when NTP clients have been widely available for decades at this point? -- Peter Laws | N5UWY | plaws plaws net | Travel by Train! _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
