Poul-Henning Kamp p...@phk.freebsd.dk wrote:
In message 277995ca-44d0-4b43-8cba-d8f87fe02...@dotat.at, Tony Finch writes:
DST exists because people care more about the time of sunrise than the time
of noon.
Sunset actually, but yes.
The reason I say sunrise is because DST reduces the time
Tony Finch wrote:
DST exists because people care more about the time of sunrise than the time
of noon.
Poul-Henning Kamp wrote:
Sunset actually, but yes.
Tony Finch writes:
The reason I say sunrise is because DST reduces the time variation of sunrise
and increases the variation of
Poul-Henning Kamp wrote:
So yes, it may be the synodic day but it is the synodic day
with a precision of about 1/6 rotation or so
A constant offset is irrelevant to the leap second discussion, which is
about whether to allow the offset to drift in the long term.
N
On 9 Jul 2012, at 18:30, Poul-Henning Kamp p...@phk.freebsd.dk wrote:
DST also exploits the vast tolerance humans have for where the sun is in the
sky when they eat.
DST exists because people care more about the time of sunrise than the time of
noon.
Tony.
--
f.anthony.n.finch
On 9 Jul 2012, at 19:07, Warner Losh i...@bsdimp.com wrote:
(2) Push for a relaxation of DUT1 1s so we could reach a 10 year time
horizon, or possibly beyond.
The difficulty with this is that it breaks several standard time sync
protocols, including MSF and the telephone time protocol. But
In message 277995ca-44d0-4b43-8cba-d8f87fe02...@dotat.at, Tony Finch writes:
On 9 Jul 2012, at 18:30, Poul-Henning Kamp p...@phk.freebsd.dk wrote:
DST exists because people care more about the time of sunrise than the time of
noon.
Sunset actually, but yes.
--
Poul-Henning Kamp | UNIX
Michael Spacefalcon said:
But with the latter approach, those
citizens who happen to be on the wrong side will have their fundamental
human rights violated by being subjected to a delta between true MST
and civil time than exceeds 30 min,
If you think that this is a fundamental human
Rob Seaman said:
The issue (discussed many times previously) is to avoid introducing a secular
trend into UTC.
And, as also discussed, you have yet to show that the woman on the Clapham
omnibus even cares.
--
Clive D.W. Feather | If you lie to the compiler,
Email: cl...@davros.org
On Jul 10, 2012, at 12:44 AM, Clive D.W. Feather wrote:
Rob Seaman said:
The issue (discussed many times previously) is to avoid introducing a
secular trend into UTC.
And, as also discussed, you have yet to show that the woman on the Clapham
omnibus even cares.
Wikipedia gives context
And, as also discussed, you have yet to show that the woman on the Clapham
omnibus even cares.
Why is it that those who object to a proposal have to do the leg work of showing
someone cares, not the ones advocating a change?
Shall we take a poll 'UN bureaucrats are proposing changeing clocks
I just read an explanation of what went wrong with some Linux systems:
http://serverfault.com/questions/403732/anyone-else-experiencing-high-rates-
of-linux-server-crashes-during-a-leap-second/403767#403767
I didn't understand all the details, but my take-away was that while the
On Jul 9, 2012, at 5:24 AM, Gerard Ashton wrote:
I just read an explanation of what went wrong with some Linux systems:
Yes, that and the Landslide analysis are very good. I also found PHK's
comments on leapsecs to be illuminating from the FreeBSD perspective.
It would be tempting to
On Jul 9, 2012, at 7:41 AM, Rob Seaman wrote:
On Jul 9, 2012, at 5:24 AM, Gerard Ashton wrote:
I just read an explanation of what went wrong with some Linux systems:
Yes, that and the Landslide analysis are very good. I also found PHK's
comments on leapsecs to be illuminating from the
On Jul 9, 2012, at 7:21 AM, Warner Losh wrote:
The biggest problem with leap seconds is the attitude Well, it is only a
second, I don't have to worry about getting it right.
I can't say that's the operative attitude. More generally the response seems
to be Say wha?!?
Turns out, getting
In message 46d53f0b-bf98-46c0-a485-4a1494e2c...@noao.edu, Rob Seaman writes:
More deeply engrained yet is the simple fact that day on any
planet, dwarf planet, or (spheroidal) moon means the synodic day.
Yes +/- 4 hours or so.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
On Jul 9, 2012, at 9:17 AM, Rob Seaman wrote:
On Jul 9, 2012, at 7:21 AM, Warner Losh wrote:
The biggest problem with leap seconds is the attitude Well, it is only a
second, I don't have to worry about getting it right.
I can't say that's the operative attitude. More generally the
On Jul 9, 2012, at 8:24 AM, Poul-Henning Kamp wrote:
In message 46d53f0b-bf98-46c0-a485-4a1494e2c...@noao.edu, Rob Seaman writes:
More deeply engrained yet is the simple fact that day on any
planet, dwarf planet, or (spheroidal) moon means the synodic day.
Yes +/- 4 hours or so.
The
On Jul 9, 2012, at 8:53 AM, Warner Losh wrote:
Try to bring up the leap second in most computing contexts and people roll
their eyes at the annoying pedant in the corner who needs to get a life…
Perhaps less so in the future. We should build on that. We might start by
sitting front and
In message cd83a0b6-1098-4e0d-b108-deb5a2470...@noao.edu, Rob Seaman writes:
On Jul 9, 2012, at 8:24 AM, Poul-Henning Kamp wrote:
In message 46d53f0b-bf98-46c0-a485-4a1494e2c...@noao.edu, Rob Seaman
writes:
More deeply engrained yet is the simple fact that day on any
planet, dwarf planet,
Poul-Henning Kamp p...@phk.freebsd.dk wrote:
Yes +/- 4 hours or so.
Only for you and those of your ilk. For me the tolerance is much,
much tighter:
* The long-term measure of days must agree with the true evolution of
mean solar time (longitude-independent) to within 1 s.
* Using the mean
What we saw at ITU-R in Geneva during January emphasized that
diplomacy is the art of the possible. The draft presented to the
assembly
http://www.itu.int/md/R07-SG07-RP-1005/en
which we were told has this content
http://www.ucolick.org/~sla/leapsecs/draftTF460-7.html
proved not to be possible.
On Jul 9, 2012, at 11:56 AM, Steve Allen wrote:
What we saw at ITU-R in Geneva during January emphasized that
diplomacy is the art of the possible. The draft presented to the
assembly
http://www.itu.int/md/R07-SG07-RP-1005/en
which we were told has this content
On Mon 2012-07-09T12:07:43 -0600, Warner Losh hath writ:
Sadly, I know that Steve has some of the kit that would need to
change, and they made the choice to go with proprietary, difficult to
change system so the cost will be kinda high.
No, in our one case where loosening DUT1 tolerance would
On Jul 9, 2012, at 10:30 AM, Poul-Henning Kamp wrote:
I'm not talking about astronomy, I'm talking about how humans have
implemented day in their daily lives.
I'm not talking about astronomy either. But when discussing how civil
engineers implement gravity on a daily basis, it sometimes
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