[time-nuts] The future of UTC

[Jim Palfreyman]

Far out. This discussion is so not time-nuts. I'm going to vent here.
I'll do my best to be polite.

Daylight savings is more beneficial the further from the equator you
go. I love it and would never want it to go. As pointed out, this is a
local issue. Go lobby your local representative.

Metric time?  FFS. The US can't even talk SI with rest of the world
yet - even though their stupid measures are defined in terms of SI -
as they have been for decades. So don't even think about it.

Change the definition of the second?? Just stop right now. Go and
learn what the effects of changing the most accurately measured thing
we have before making silly comments like that!!!

Ok, that's all sorted, let's get to the point on leap seconds. I can
see both sides I really can. Making big changes years in the future is
bad. Remember Y2K?

I don't like the idea of letting DUT1 getting big. But it could be
bigger than it is now without huge issues.

I must admit Poul-Henning's idea of a 20 year advance notice is the
best idea I've heard so far. But I'd recommend 10 years. A good metric
number.

Don't get hung up on noon occurring at 12:00 - the equation of time
blows that right out.

I think stopping leap seconds is bad, and having them regularly is
good for practice - no Y2K problems.

So again, 10 years advance notice is a really nice solution.

/rant

On Saturday, 16 July 2011, Rob Kimberley <rk at timing-consultants.com> wrote:
> Daylight savings seems to be a bit archaic especially with modern flexible
> working practices. Why not fit the working day around the clock & seasons,
> rather than try to correct things twice a year?
>
> Rob Kimberley
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Mark Spencer
> Sent: 15 July 2011 5:51 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] The future of UTC
>
> Sorry for the prior  email with no text.
>
> If the world could agree on the dates when DST adjustments are applied (if
> individual countries, states etc elect to make DST adjustments) and make any
> needed leap second adjustments at the same time that would be a positive
> step IMHO.
>
>
>
> ----- Original Message ----
> From: Jose Camara <camaraq1 at quantacorp.com>
> To: Discussion of precise time and frequency measurement
> <time-nuts at febo.com>
> Sent: Fri, July 15, 2011 9:18:03 AM
> Subject: Re: [time-nuts] The future of UTC
>
> I think before adding to the fire of UTC1, UTC7 etc. why not just abolish
> this silliness called Daylight Savings Time?  If there is any benefit to it,
> just change business operating hours instead. In summer you work 10 to 6
> instead of 9 to 5 and we don't have to go around the house, car, etc.
> changing clocks. And Congress doesn't have to change the dates the VCRs were
> programmed to do automatically, leaving time for them to take care of
> something more important...
>
> I used to have pet tortoises that would always ignore DST, looking for their
> food one hour earlier...
>
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of Steve Rooke
> Sent: Friday, July 15, 2011 8:24 AM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] The future of UTC
>
> On 16 July 2011 03:14, Poul-Henning Kamp <phk at phk.freebsd.dk> wrote:
>> In message
> <CACTjVNynr5Vhrj=E+gFUnGeBPa_u8__26BhjaMK2NV6UXGi2Sg at mail.gmail.com>
>> , Steve Rooke writes:
>>
>>>> Nope, once they have scheduled a leap-second, it happens.
>>>
>>>And if it's not needed?
>>
>> It is needed, otherwise they would not have scheduled it.
>
> So, your saying they will predict all the wobbling, drift, internal earth
> changes, etc and do this with any accuracy 20 years in advance, when we have
> already seen significant variations in this.
>
>> If they predict wrong all that happens is that DUT1 wanders a bit more
>> around and they will have to catch up with it over the next couple of
>> decades.
>
> Given that straight-jacket, I suggest they schedule one every year then they
> can add and subtract them willy nilly. Yes, New Years Day, worldwide let's
> change the clock regardless. It would make it much more fun for all of us to
> watch what happens. Yes, I'm game for that, great idea.
>
> Cheers,
> Steve
>
>> --
>> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20 phk at FreeBSD.ORG
>
>> | TCP/IP since RFC 956 FreeBSD committer       | BSD since 4.3-tahoe
>> Never attribute to malice what can adequately be explained by
> incompetence.
>>
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>
>
>
> --
> Steve Rooke - ZL3TUV & G8KVD
> The only reason for time is so that everything doesn't happen at once.
> - Einstein
>
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