In message: <[EMAIL PROTECTED]>
Neal McBurnett <[EMAIL PROTECTED]> writes:
: I still haven't seen any good data on predictions for periods of
: longer than 9 years.
Neal,
thanks for the excellent summary of the current state of the art in
prediction.
I think this shows that a 20 year
Ed Davies <[EMAIL PROTECTED]> wrote:
> UTC is expressible as a real number in just the same way that
> Gregorian dates (with months with different lengths and leap
> days) can be with the Julian calendar.
>
> There's no difference in principle between converting from a
> TAI time in seconds since
Poul-Henning Kamp <[EMAIL PROTECTED]> wrote:
> In this rather humorous document you have managed to say that POSIX
> screwed up badly. We already knew that :-)
What does this have to do with POSIX? The word POSIX does not appear in
my article.
MS
Steve Allen <[EMAIL PROTECTED]> wrote:
> If I read it right you have reinvented Markus Kuhn's UTS [...]
Close to it, but...
Ed Davies <[EMAIL PROTECTED]> followed up:
> Also, Markus wasn't proposing UTS as a civil timescale but just
> for use within computer systems, etc.
Therein lies the key
Please ignore this post. It got away because I was connected to my UNIX
host from my girlfriend's PC over her cable Internet connection which is
probably the crappiest in the world as I was composing a reply to some
posts on this list, and as it crapped out on me, the mail process on the
UNIX host
>From [EMAIL PROTECTED] Sat Jan 7 08:03:04 2006
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On Wed, Jan 04, 2006 at 07:36:17AM +0100, Poul-Henning Kamp wrote:
> In message <[EMAIL PROTECTED]>, Neal McBurnett writes:
> >On Tue, Jan 03, 2006 at 08:32:08PM +0100, Poul-Henning Kamp wrote:
> >> If we can increase the tolerance to 10sec, IERS can give us the
> >> leapseconds with 20 years notic
On Jan 7, 2006, at 11:37 AM, John Cowan wrote:Whether we choose to bleed off the daily accumulating milliseconds one second or 3600 at a time, bleed them we must...and even people who loathe the very notion of leap seconds admit this. NO, I DON'T ADMIT THAT. On the contrary, I deny it, flatly, rou
In message <[EMAIL PROTECTED]>, Steve Allen writes:
>On Sat 2006-01-07T21:20:33 +0100, Poul-Henning Kamp hath writ:
>> You can find locate your countrys ITU-R representative and contact
>> them with your input, just as well as I can for mine.
>
>You can try that, and you may succeed, but it is dece
On Sat 2006-01-07T21:20:33 +0100, Poul-Henning Kamp hath writ:
> You can find locate your countrys ITU-R representative and contact
> them with your input, just as well as I can for mine.
You can try that, and you may succeed, but it is deceptive to assert
that is easy to do.
In the US the proces
In message: <[EMAIL PROTECTED]>
"Daniel R. Tobias" <[EMAIL PROTECTED]> writes:
: On 7 Jan 2006 at 16:02, Poul-Henning Kamp wrote:
:
: > Civil time is in the hands of individual governments, and they
: > tend to expect their computers to use the same time as the
: > rest of their country
In message <[EMAIL PROTECTED]>, Neal McBurnett writes:
>> Civil time is in the hands of individual governments, and they
>> tend to expect their computers to use the same time as the
>> rest of their country.
>
>Yes again. And they are free to choose TAI if they want a uniform
>time scale. But w
On 7 Jan 2006 at 16:02, Poul-Henning Kamp wrote:
> Civil time is in the hands of individual governments, and they
> tend to expect their computers to use the same time as the
> rest of their country.
And, in many countries (including the United States), the legally-
defined civil time is the mean
On Sat, Jan 07, 2006 at 04:02:04PM +0100, Poul-Henning Kamp wrote:
> In message <[EMAIL PROTECTED]>, Ed Davies writes:
> >Ignoring the ridiculous parody - no, it's not a weird concept.
> >Different timescales are useful for different purposes. Get
> >used to it.
>
> I have no problems with differe
Poul-Henning Kamp scripsit:
> >By your logic, the U.S. Surgeon General should be a chiropractor.
>
> Once the US government tries to shoulder their national deficit
> that would undoubtedly be a good idea.
Chiropractors are by no means cheaper to hire than other doctors.
Nor are their treatments
Steve Allen scripsit:
> The changes in the length of any kind of year are slight by comparison
> to the changes in length of day. Neglecting "short" period variations
> the length of the sidereal year has not changed much in a billion years.
That is to say, the current best approximation to the
Rob Seaman scripsit:
> Unless we *completely* change our notion of Canoli, Canoli is tightly
> constrained to follow Eclair simply by the fact that today and
> tomorrow and the million days that follow are all required to be dark
> at night and light in the day.
I think you are getting carried aw
In message <[EMAIL PROTECTED]>, Rob Seaman writes:
>Astronomers use UT1. Astronomers use UTC. Astronomers are among the
>biggest users of TAI and GPS and likely any other timescale you care
>to name.
And they certainly have a lot of trouble seeing the rest of the world
in for the brightness of
On Sat 2006-01-07T13:06:13 -0500, John Cowan hath writ:
> Well, yes. But that's a matter of verbal labels. The Gregorian calendar
> extends to all future time: what is not known is the date on which it
> will be replaced in civil use by a further refinement. We know we will
> need one eventually
Ed Davies scripsit:
> (There's a small difference in practice in that the UTC to
> TAI conversion requires a lookup table which is not known
> very far into the future whereas the Gregorian calendar is
> defined algorithmically for all time.)
Well, yes. But that's a matter of verbal labels. The
On Jan 7, 2006, at 8:02 AM, Poul-Henning Kamp wrote:
I have no problems with different timescales for different purposes.
Great! Consensus reached!
Rejoicing in all the lands! May one suggest a parade in
celebration? The great Parade of the Leap Seconds! To be held on
December 31 or June
Hi Ed,
Poul-Henning Kamp wrote:
What a weird concept...
Why not go the full distance and define a timescale for each
particular kind of time-piece:
and give each of them their own unique way of coping with
leapseconds ?
Ignoring the ridiculous parody - no, it's not a weird conce
In message <[EMAIL PROTECTED]>, Ed Davies writes:
>Ignoring the ridiculous parody - no, it's not a weird concept.
>Different timescales are useful for different purposes. Get
>used to it.
I have no problems with different timescales for different purposes.
For instance I very much wish the Ast
Incontrovertible proof from the web:
Leap seconds increase traffic deaths in Australia
http://www.thewaxconspiracy.com/wicked/gonzo/483.php
Leap seconds cause flooding in a regional creek
http://www.insidebayarea.com/sanmateocountytimes/localnews/ci_3380248
Leap seconds promote the creation of q
Michael Sokolov wrote:
Hello,
I am a new entrant into the leap second debate and I have just written a
paper in which I have outlined what I think is the real problem with UTC
and leap seconds as they are currently implemented and a proposed
solution. I have put the article on my web page:
htt
Poul-Henning Kamp wrote:
What a weird concept...
Why not go the full distance and define a timescale for each
particular kind of time-piece:
and give each of them their own unique way of coping with leapseconds ?
Ignoring the ridiculous parody - no, it's not a weird concept.
Diffe
In message <[EMAIL PROTECTED]>, Ed Davies writes:
>Also, Markus wasn't proposing UTS as a civil timescale but just
>for use within computer systems, etc.
What a weird concept...
Why not go the full distance and define a timescale for each
particular kind of time-piece:
Wrist Watch time
Steve Allen wrote:
On Sat 2006-01-07T07:39:58 +, Michael Sokolov hath writ:
http://ivan.Harhan.ORG/~msokolov/articles/leapsecs.txt
If I read it right you have reinvented Markus Kuhn's UTS as seen in
http://www.cl.cam.ac.uk/~mgk25/uts.txt
http://www.cl.cam.ac.uk/~mgk25/time/leap/
http:/
In message <[EMAIL PROTECTED]>, Markus Kuhn writes:
>Which was also noted at
>
> http://wwwhome.cs.utwente.nl/~ptdeboer/ham/sdr/leapsecond.html
Right, but I think my data has a bit more resolution etc.
I'm demodulating Rugby right now (will take half a day or so)
and after that I'll go after Fr
Which was also noted at
http://wwwhome.cs.utwente.nl/~ptdeboer/ham/sdr/leapsecond.html
Various other LF 2005 leap second recordings are listed at
http://www.cl.cam.ac.uk/~mgk25/time/lf-clocks/#leapsec2005
Markus
--
Markus Kuhn, Computer Laboratory, University of Cambridge
http://www.cl.cam
Looks like the inserted the leapsecond after the minutemarker:
http://phk.freebsd.dk/Leap/20051231_HBG/
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
[EMAIL PROTECTED] | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequat
In message <[EMAIL PROTECTED]>, Poul-Henning Kamp writes:
>In message <[EMAIL PROTECTED]>, Steve Allen writes:
>>On Sat 2006-01-07T00:32:44 +0100, Poul-Henning Kamp hath writ:
>
>>At the beginning of 1984 and at the beginning of 2003 the branches of
>>the IERS responsible for UT1 followed new IAU
In message <[EMAIL PROTECTED]>, Michael Sokolov writes:
>http://ivan.Harhan.ORG/~msokolov/articles/leapsecs.txt
In this rather humorous document you have managed to say that POSIX
screwed up badly. We already knew that :-)
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
[EMAIL PROTECTED
In message <[EMAIL PROTECTED]>, Steve Allen writes:
>On Sat 2006-01-07T00:32:44 +0100, Poul-Henning Kamp hath writ:
>> UTC
>> UTC(time) = TAI(time) + Leap(time)
>>
>> Owned by ITU.
>> IERS evaluates Leap(time) according ITU definition
>
>Not
In message <[EMAIL PROTECTED]>, William Thompson writes:
>Poul-Henning Kamp wrote:
>
>> Universal Time = confusing term which comes handy when trying to
>> manipulate discussions about leap second futures.
>
>I have to take issue with this one.
My point was that when you ju
On Sat 2006-01-07T07:39:58 +, Michael Sokolov hath writ:
> http://ivan.Harhan.ORG/~msokolov/articles/leapsecs.txt
If I read it right you have reinvented Markus Kuhn's UTS as seen in
http://www.cl.cam.ac.uk/~mgk25/uts.txt
http://www.cl.cam.ac.uk/~mgk25/time/leap/
http://www.cl.cam.ac.uk/~mgk2
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