Re: [LEAPSECS] Schedule for success

2008-12-23 Thread Poul-Henning Kamp
In message 26bb77ec-8284-4aa8-b9d5-0393dc1e6...@noao.edu, Rob Seaman writes: I have failed to make my argument clear that civil timekeeping is equivalent (in the sense of a mathematical identity) to some stable approximation to mean solar time. I don't think anybody disputes that. The

Re: [LEAPSECS] Merry Christmas!

2008-12-23 Thread Poul-Henning Kamp
In message 8ff6a915-db87-4cd9-bdc9-93e4d2c24...@noao.edu, Rob Seaman writes: I work in the astronomical community. Many long, long years ago, when this issue was first broached, we started vetting issues pertaining to astronomy. This change would surely cost us millions of dollars.

Re: [LEAPSECS] Schedule for success

2008-12-23 Thread Daniel R. Tobias
On 23 Dec 2008 at 8:43, Poul-Henning Kamp wrote: The rest of us have no trouble with a tolerance of up to (at least) one hour, because that's what is already the reality for 99.9..% of the population. And then your distant descendants will throw a huge fit about the possibility of a leap

Re: [LEAPSECS] Schedule for success

2008-12-23 Thread Rob Seaman
Poul-Henning Kamp wrote: civil timekeeping is equivalent (in the sense of a mathematical identity) to some stable approximation to mean solar time. I don't think anybody disputes that. Ok. Glad to hear it. Stable approximation implies that a proposal to change UTC includes a plan for

Re: [LEAPSECS] Merry Christmas!

2008-12-23 Thread Rob Seaman
Poul-Henning Kamp wrote: I have told you over and over, that if astronomers got their act together, they would get this upgrade in the blink of an eye if business which have real money riding on the leap-second could get rid of them. Make us an offer. What have I ever said to suggest

[LEAPSECS] civil-solar correlation with TI

2008-12-23 Thread Zefram
Daniel R. Tobias wrote: And then your distant descendants will throw a huge fit about the possibility of a leap hour being imposed, which would be much more noticeably disruptive than leap seconds, and will indefinitely block such a thing, until some day noon comes in the middle of the night.

Re: [LEAPSECS] civil-solar correlation with TI

2008-12-23 Thread Tony Finch
On Tue, 23 Dec 2008, Zefram wrote: Either of my scenarios still suffers from the problem that the TI-UT difference accelerates. These timezone offset changes would be needed at decreasing intervals. By the time timezones are jumping by an hour every year, one might expect to see political

Re: [LEAPSECS] Merry Christmas!

2008-12-23 Thread Poul-Henning Kamp
In message 66044ca9-b04e-40f3-8ad6-37f9d5248...@noao.edu, Rob Seaman writes: This, again, shows that you simply don't understand what our trouble is. We do not need to grep for DUT1, because it's not there, we don't care about DUT1. So no naive subcontractors put DUT1 in after reading

[LEAPSECS] 2008-12-31T23:59:60Z

2008-12-23 Thread Brian Garrett
As interesting as the continuing theoretical discussions are (or at least, what I as an interested bystander can comprehend of them), I think it might be informative to see examples of how the leap second to be thrust upon us next week is affecting list members' current projects. Specific

Re: [LEAPSECS] 2008-12-31T23:59:60Z

2008-12-23 Thread Sanjeev Gupta
Folks, Any help on how to use a Linux PC driving a large monitor/LCD projector to show a group of school children the leap second? It will be in daylight hours here (Singapore). -- Sanjeev Gupta +65 98551208 On Tue 2008-12-23T20:08:06 -0800, Brian Garrett hath writ: examples of how the

Re: [LEAPSECS] 2008-12-31T23:59:60Z

2008-12-23 Thread Rob Seaman
Brian Garrett wrote: As interesting as the continuing theoretical discussions are (or at least, what I as an interested bystander can comprehend of them), I think it might be informative to see examples of how the leap second to be thrust upon us next week is affecting list members'