Richard B. Gilbert wrote: > I have a couple of "radio controlled" digital clocks and a > wrist watch that do it automagically. The VLF broadcast from > WWVB provides the necessary info.
Yes, but all the WWVB broadcast says about DST is whether it is in effect or not, or about to start or end, according to the rules currently in effect in the USA. And all your digital clocks know is which of the four continental-US time zones they are in, and whether or not DST is ever observed locally at all. This is wholly inadequate for the worldwide summer time situation. Even if WWVB could be received in other parts of the world, its DST info would be unusable, because it wouldn't be able to take into account the different rules for when DST starts and ends in different parts of the world. In order for me to know if I should follow DST info offered to me by an NTP server, I would need to know where that server is and which locality's DST rules it is following. In my view, it makes far more sense for NTP to keep hands off the whole DST question and confine itself to time-zone-independent issues (such as UTC, leap seconds, and TAI offset). -- Rich Wales / ri...@richw.org / ri...@stanford.edu Wikipedia: http://en.wikipedia.org/wiki/User:Richwales Facebook: http://www.facebook.com/richwales _______________________________________________ questions mailing list questions@lists.ntp.org https://lists.ntp.org/mailman/listinfo/questions
