Well, they flip the “warning” bit at 0h UTC (4PM PST the afternoon before), so I think the explanation is that my clock was able to sync up at that time, and it reacted to the warning bit rather than using that as a cue to make the change at 0200J like it should have. Either that, or the receiver erroneously received a ’11’ rather than a ’10’, or WWVB transmitted the bits wrong (which I’d think unlikely, except that it wasn’t just my clock that reacted early).
> On Mar 14, 2016, at 8:23 PM, Andy <[email protected]> wrote: > > Yes, what I meant by "switch to DST" was that it flips the DST bit. > Not that the timecode itself changes. > > Since the time many clocks use to sync up with WWVB is (from what I > recall) around 2AM, it seems kind of dicey whether they would make the > change on the right day. > > I think that doesn't explain the change happening at 2000J -- unless > your receiver was receiving and syncing to WWVB at that time and they > had already flipped the bit. > > Andy > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
