[time-nuts] WWV, WWVB and Daylight Savings Time

[Graham / KE9H]

That is the problem I am trying to avoid.
The politicians insist on messing-with/changing Daylight Savings time.
(I'll stop there before Tom comes after me.)

Today I have a convenient bit I can look at on a WWV or WWVB signal and
know whether to offset for DST.
Little intelligence and no OS required.
No software/firmware update required when someone decides to change the
changeover weekend in the US.
GPS doesn't tell me.
NTP doesn't tell me.

NIST seems to be suggesting the clock makers move off of radio, and onto
the net for accurate time.
Is there something as simple on the net that I could query with a single
packet and get a single packet answer?

--- Graham

==

On Fri, Aug 24, 2018 at 9:23 AM Hal Murray <hmurray at megapathdsl.net> wrote:

>
> ke9h.graham at gmail.com said:
> > If both the HF and LF signals go away due to the proposed budget cuts,
> what
> > is the next simplest way (for something like a microprocessor based
> clock) to
> > get DST information?
>
> "microprocessor" isn't a well defined term.
>
> If you have an OS, use the time conversion package.  They all use the same
> collection of zone info files.
>
> If you don't have an OS, use a system with an OS to pre-compute the
> switch-dates for the next N years and store them in a table.  You will
> have to
> update that table whenever Congress screws with things.
>
> --
> These are my opinions.  I hate spam.
>
>
>
>
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