On 14 Jan 2014, at 23:53, Poul-Henning Kamp p...@phk.freebsd.dk wrote:
It's not like Ken Dennis looked at leap-seconds and went Naah,
who cares, or even braindead! We'll skip that.
I think it would require slightly more software archaeology to determine who
took what decisions about what.
This notion leaves open the question of the name UTC. In particular,
can the delegates to the ITU-R RA be persuaded to vote for a new
version of TF.460 if they are aware that the new wording will change
the legal definition of the word day in every country which has
adopted UTC as its time
On 16 Jan 2014, at 09:33, Tom Van Baak t...@leapsecond.com wrote:
This notion leaves open the question of the name UTC. In particular,
can the delegates to the ITU-R RA be persuaded to vote for a new
version of TF.460 if they are aware that the new wording will change
the legal definition
In message 2747cb51-6467-4a14-92be-229901755...@batten.eu.org, Ian Batten wri
tes:
That ship's already sailed. Days are the intervals between successive
civil time midnights,
...except in Norway and Denmark, and a few other select countries where
our language as a word for 24 hour period (døgn)
The Multics clock design (a fixed bin (71), ie double word, representing
microseconds
since 00:00 01-01-1900) clearly informs the Unix one.
Was it 1900 or 1901? See:
http://www.multicians.org/jhs-clock.html
http://web.mit.edu/multics-history/source/Multics/ldd/bos/include/rdclock.incl.alm
Tom Van Baak t...@leapsecond.com wrote:
When I developed email in 1976 I encoded the BCD date (mmddyy) and BCD
time (hhmmss) into two 18-bit binary fields. This worked because the
maximum possible date was 123199, the maximum time was 235959, which
just fit in the maximum half-word (2^18 =
In message ead2cfb1-799e-4bc9-9a68-80aad893e...@batten.eu.org, Ian Batten wri
tes:
It would be interesting to know what proportion of computers
1975--2000 had their clocks aligned to within +/- 22 seconds of
anything, such that ignoring leap second was anything other than
a second-order effect.
On Jan 16, 2014, at 7:23 AM, Poul-Henning Kamp wrote:
In message ead2cfb1-799e-4bc9-9a68-80aad893e...@batten.eu.org, Ian Batten
wri
tes:
It would be interesting to know what proportion of computers
1975--2000 had their clocks aligned to within +/- 22 seconds of
anything, such that
On 16 Jan 2014, at 15:03, Warner Losh i...@bsdimp.com wrote:
I think the answer for 1970-1990 is that most of them were aligned to local
time (even if the system ticked in virtual UTC/GMT time) with sub-minute
accuracy. Time alignment started to matter as more computers were networked
INTERNATIONAL EARTH ROTATION AND REFERENCE SYSTEMS SERVICE (IERS)
SERVICE INTERNATIONAL DE LA ROTATION TERRESTRE ET DES SYSTEMES DE REFERENCE
SERVICE DE LA ROTATION TERRESTRE
OBSERVATOIRE DE PARIS
61, Av. de l'Observatoire 75014 PARIS (France)
Tel. : 33 (0) 1 40 51 22 29
FAX :
might there be a bit more simplicity added to this discussion. It
would seem to me that what is and is not a clock is not and should
not be the question. A clock tells time, whatever that is. Planetary
rotation, Planetary orbit, A pendulum, A quartz crystal, or a cesium
beam - none of these
On 15 Jan, 2014, at 14:58 , Richard Clark rcl...@noao.edu wrote:
And as for counting-- it's not always in the realm of mathematicians.
When you enter a building on ground level and you go to a room on the
1st floor do you expect to use the stairs or elevator? The answer depends
on wheather
Eric Fort eric.f...@gmail.com wrote:
|I'd be interested in the groups comments.
Follow me across the sea.
Where milky babies seem to be.
Molded, flowing revelry.
With the one that set them free.
Tell all the people that you see.
It's just me
|[.]I think the mass public
|would
On Thu 2014-01-16T09:58:52 -0800, Eric Fort hath writ:
Maybe it's time for the minders
of astronomical periodicity and the minders of atomic periodicity to
simply agree to disagree about what time is at it's core and simply
use the timescale that is appropriate and useful for their own use.
On Thu, Jan 16, 2014 at 10:18 AM, Steve Allen s...@ucolick.org wrote:
On Thu 2014-01-16T09:58:52 -0800, Eric Fort hath writ:
Maybe it's time for the minders
of astronomical periodicity and the minders of atomic periodicity to
simply agree to disagree about what time is at it's core and simply
On 2014-01-15 11:36 PM, Steve Allen wrote:
On Thu 2014-01-16T06:55:00 +, Clive D.W. Feather hath writ:
Poul-Henning Kamp said:
What *has* been proposed, where I have seen it, is to remove
leap-seconds, and leave the keep civil time in sync with the sun
up to local governments who can mess
On Thu 2014-01-16T01:33:53 -0800, Tom Van Baak hath writ:
What is a typical example of the legal definition of a day? Would
that definition be affected if DUT1 were allowed to grow to 2 s or 10
s or 60 s instead of 0.9 s?
In the United States one legal definition with significant financial
17 matches
Mail list logo
