Path: ...!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail From: "Adam H. Kerman" Newsgroups: rec.arts.tv Subject: Re: What Did You Watch? 2024-03-10 (Sunday) Date: Mon, 11 Mar 2024 16:22:18 -0000 (UTC) Organization: A noiseless patient Spider Lines: 34 Message-ID: References: Injection-Date: Mon, 11 Mar 2024 16:22:18 -0000 (UTC) Injection-Info: dont-email.me; posting-host="4bcb4d3093f61ffb409034995dc67a1d"; logging-data="3903569"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18T44kobuH8y1IZPiaKMuBAt7pzKsITkt4=" Cancel-Lock: sha1:2mlD3b3jVKa5bKspbq7Jrma2U0I= X-Newsreader: trn 4.0-test77 (Sep 1, 2010) Bytes: 2452 super70s wrote: >I have four atomic regulated clocks in my home, and another tiny atomic >clock on the bedside table. One of them doesn't get the signal at all >for some reason so I have to manually set it, and two of them usually >don't get the signal until the next evening. Atomic, hahahahaha These clocks receive the radio signal from NIST in Colorado to synchronize. The signal is sent as GMT. The offset from Greenwich is set manually, and the user chooses whether to display DST. That the time change takes place at 2 am is hard wired. A bit of code (I think it's literally two bits) is sent on time change day so that no reprogramming is required when the law is amended. If the device misses receiving the code, it won't change over at 2 am and the changeover happens when it next synchronizes. >Then I have this little Sony alarm clock in the living room on my computer >hutch that isn't atomic but it always recognizes the time change. Then the provisions of the 2005 amendment is hard wired in. I have VCRs with the pre-2005 provisions hard wired in, which forced me to make the change manually. They aren't hooked up at the moment. >That still leaves the >GE kitchen under-cabinet clock, an old Coca-Cola clock, and my watch >that I have to manually set. >I never bother with resetting the clock in the car, I just keep it on >DST all year. My vehicle has a network clock from GPS but I have to manually change the time offset, plus an analog clock that is not networked.