[LEAPSECS] the leap second will have no impact on our daily lives

2012-03-25 Thread Steve Allen
Last week the Chinese metrology agency announced that it would implement the June 30 leap second. That press release is now an exercise in translation from English to Chinese. http://my.dict.cn/thread-96693-1-1.html -- Steve Allen WGS-84 (GPS) UCO/Lick

[LEAPSECS] temporal confusion

2012-03-26 Thread Steve Allen
confusion largely by omitting most of the self-contradictory content of the original Appendix B. Nevertheless, there are several references to PTP which repeat the content of the original and say that PTP is TAI - 10 s. Is there any clear explanation of what happened? -- S

[LEAPSECS] Schlampig programmierte Software ist das Problem

2012-04-03 Thread Steve Allen
borrowing the subject line from Dr. Andreas Bauch of the German PTB ... TomTom GPS units have failed, after a month, as a result of the leap year http://www.bbc.co.uk/news/technology-17599701 -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural

[LEAPSECS] trivia, the 2nd longest year

2012-04-12 Thread Steve Allen
A well circulated piece of trivia is that 1972 was the longest year in recorded history because civil time contained two leap seconds. I offer this challenge: What was the second longest year in recorded history, and how many leap seconds did it have? -- Steve Allen

Re: [LEAPSECS] trivia, the 2nd longest year

2012-04-22 Thread Steve Allen
On Thu 2012-04-12T12:33:03 -0700, Steve Allen hath writ: > I offer this challenge: > > What was the second longest year in recorded history, and how many > leap seconds did it have? Clearly the longest year in any contemporary calendar will fall into the category of one of the luni-so

[LEAPSECS] Leap second festival 2012

2012-04-30 Thread Steve Allen
arity, coordinated on the Internet. The festival takes place on the leap second @ 30th June 2012 23:59:60 UTC. During that second all the works are exhibited and performed. Call for entries: Works lasting one second or less. The festival is also interested in texts and essays. --

[LEAPSECS] It's SG7 day in Geneva

2012-05-08 Thread Steve Allen
time-scale and related activities (WRC-15 Agenda item 1.14) -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064

Re: [LEAPSECS] [time-nuts] Why 9,192,631,770 ??

2012-05-11 Thread Steve Allen
walls. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory Natural Sciences II, Room 165 Lat +36.99855 University of California Voice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064

[LEAPSECS] we thought it was a joke

2012-05-23 Thread Steve Allen
st plain quartz clocks without radios and sold them with the same plastic chassis as their radio clocks. I reset the clock manually, and it was well. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High Street

Re: [LEAPSECS] we thought it was a joke

2012-05-23 Thread Steve Allen
On Wed 2012-05-23T11:50:12 -0700, Steve Allen hath writ: > Way back in 2003 we joked about the medical consequences of time. > file:///usr/local/www/sla/leapsecs/reductio.html that should be http://www.ucolick.org/~sla/leapsecs/reductio.html -- Steve Allen

[LEAPSECS] preparations for the next leap second

2012-06-02 Thread Steve Allen
of patches from Richard Cochran. http://groups.google.com/group/fa.linux.kernel/browse_thread/thread/aa9384a6ace84c0b/1beb72b4bc04af06 -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High Street

Re: [LEAPSECS] Telescope pointing

2012-06-08 Thread Steve Allen
rs to the hardback, CDROM, and preprints. The bottom line is that the effect on telescope pointings is divided based on the role of human operators in their systems. -- Steve Allen WGS-84 (

Re: [LEAPSECS] Telescope pointing

2012-06-08 Thread Steve Allen
ge may vary. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory Natural Sciences II, Room 165 Lat +36.99855 University of California Voice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064 http://www.ucolick.org/~sla/

Re: [LEAPSECS] Telescope pointing

2012-06-08 Thread Steve Allen
ects. Satellite trackers cannot do that because they depend on the correct transformation between celestial and terrestrial. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831

[LEAPSECS] global outage, or not

2012-06-30 Thread Steve Allen
icles this is all due to the "breaking action of the tides" :-\ Happy leap second! -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -

[LEAPSECS] telescope systems saw the leap second

2012-06-30 Thread Steve Allen
in the WinNT systems and the Linux systems that do everything else: The difference between 'PMAC' and Unix time is now -0.992362 -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory Nat

[LEAPSECS] postmortem, things that were not the leap second

2012-07-01 Thread Steve Allen
cause of a planned server move. http://www.buzzfeed.com/summeranne/y2k-20-how-a-second-brought-down-half-the-intern -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 83

[LEAPSECS] postmortem, specifics of fails

2012-07-01 Thread Steve Allen
NTP config, or coexistence of mysql. linux system logs showed issues with futex https://lkml.org/lkml/2012/6/30/122 -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 304

Re: [LEAPSECS] telescope systems saw the leap second

2012-07-01 Thread Steve Allen
se the leap second is the least of our worries about strange things that all that all its systems tend to do. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory Natural Sciences II, Ro

Re: [LEAPSECS] Accountability for failures and broken promises

2012-07-01 Thread Steve Allen
elated load spikes" http://permalink.gmane.org/gmane.linux.kernel/1321108 -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory Natural Sciences II, Room 165 Lat +36.99855 Universit

Re: [LEAPSECS] Leapseconds, more evidence

2012-07-02 Thread Steve Allen
ry time that happens during the 86400 s prior to a leap. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064

[LEAPSECS] the next future of utc

2012-07-02 Thread Steve Allen
In the aftermath of the 2012 leap second we announce the next meeting http://futureofutc.org/ Requirements for UTC and Civil Timekeeping on Earth A Colloquium Addressing a Continuous Time Standard to be held at the University of Virginia, Charlottesville, VA May 29-31, 2013. -- Steve Allen

[LEAPSECS] any other parties?

2012-07-08 Thread Steve Allen
At JPL I worked on the floor above Skip (whose initials are XXN, thus the Fortran programmers will recognize the origin of the nickname). I did not hold a leap second party, but Skip did. http://www.the-signal.com/section/36/article/69087/ Did anybody else celebrate? -- Steve Allen

Re: [LEAPSECS] Testing computer leap-second handling

2012-07-09 Thread Steve Allen
motivations to such a nebulous bureaucratic entity) would appreciate assistance that enables consensus. That is part of the hope behind the next futureofutc.org meeting set for next May in Charlottesville. Can LEAPSECS contribute ideas for a better draft revision of TF.460 ? -- Steve Allen

Re: [LEAPSECS] Testing computer leap-second handling

2012-07-09 Thread Steve Allen
g will be available at the conclusion of the test. It makes leaps even less common, less necessary to worry about and test right now, and it changes the nature of those leaps in ways that require a whole new way of thinking about how POSIX systems will handle them. -- St

Re: [LEAPSECS] any other parties?

2012-07-10 Thread Steve Allen
On Sun 2012-07-08T08:24:35 -0700, Steve Allen hath writ: > I did not hold a leap second party, but Skip did. > http://www.the-signal.com/section/36/article/69087/ Here's an edited video of the party. http://youtu.be/CaOpGrs0x_U The time nuts should note how the different clocks in

[LEAPSECS] some new definition of...

2012-07-17 Thread Steve Allen
ging the data can lead to varying interpretations about whether the derecho or the leap second was worse. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046

Re: [LEAPSECS] Derecho vs Leap Second

2012-07-18 Thread Steve Allen
ap second. If I read the following thread correctly there were other flaws in the hrtimer code which were revealed by invoking suspend/resume. https://groups.google.com/forum/?hl=en&fromgroups#!topic/linux.kernel/5xe7tUBBqtU A better answer would come from a linux kernel hacker. -

[LEAPSECS] IAU GA Beijing, McCarthy

2012-07-19 Thread Steve Allen
least consider the UT1 - UTC implications of so doing. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064http

[LEAPSECS] today's leap second

2012-08-01 Thread Steve Allen
.com/lists/mythtv/users/524941 The discussions indicate (as is painfully often the case) that the commenters have not read what ITU-R 460 says about when leaps are allowed, and the conspiracy theories are already appearing about "a very clever denial-of-service attack."

[LEAPSECS] US contribution to next WP7A meeting

2012-08-15 Thread Steve Allen
The next meeting of ITU-R WP7A will be in Manta Ecuador in September. The US WP7A has submitted a draft statement for review by US citizens. https://www.ussg7.org/ITAC-R%20Documents.aspx The deadline for comments is September 5. -- Steve Allen WGS-84 (GPS) UCO/Lick

[LEAPSECS] more poison in the NTP pool

2012-08-31 Thread Steve Allen
/comp.protocols.time.ntp/vhVlH4ENsJQ -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064http://www.ucolick.org

Re: [LEAPSECS] more poison in the NTP pool

2012-09-01 Thread Steve Allen
how all the agencies involved in the definitions of time scales have left implementation to be Somebody Else's Problem. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory Natural Scien

[LEAPSECS] WRC-15 Agenda item 1.14

2012-09-14 Thread Steve Allen
issues surrounding leap seconds. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064http://www.ucolick.org

[LEAPSECS] one week until WP7A in Manta

2012-09-17 Thread Steve Allen
C/en Among other things in there we again see that the BIPM is prepared to abandon TAI. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Sant

[LEAPSECS] yesterday USNO said it was year 2000

2012-11-20 Thread Steve Allen
Various messages in admin support forums are indicating fallout from the event recorded here http://mailman.nanog.org/pipermail/nanog/2012-November/053449.html wherein the USNO's NTP servers tick and tock briefly jumped 12 years into the past. -- Steve Allen W

[LEAPSECS] USNO NTP incident of 2012-11-19

2012-11-25 Thread Steve Allen
similarly, delegates to subsequent ITU-R meetings about the broadcast time scale will lack basis for making their decisions My question: Is there a published description of this event which will be citeable for the sake of posterity? -- Steve Allen WGS-84 (GPS)

[LEAPSECS] google abandons NTP ?

2012-11-26 Thread Steve Allen
time across the surface of earth. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064http://www.ucolick.org

Re: [LEAPSECS] google abandons NTP ?

2012-11-26 Thread Steve Allen
eap smear" is one of the features implemented within this scheme. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA

Re: [LEAPSECS] other ignored leap conventions

2013-01-01 Thread Steve Allen
new year bug in iOS http://www.macrumors.com/2013/01/01/ios-6s-do-not-disturb-not-shutting-off-automatically-on-new-years-day/ -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice:

[LEAPSECS] Jan 1 leap second news

2013-01-01 Thread Steve Allen
On Tue 2013-01-01T10:37:05 -0800, Steve Allen hath writ: > Apparently that is not the case for the new year bug in iOS > http://www.macrumors.com/2013/01/01/ios-6s-do-not-disturb-not-shutting-off-automatically-on-new-years-day/ In other news, xkcd's what if has asked about the leap

[LEAPSECS] New Years financial trouble

2013-01-07 Thread Steve Allen
Some financial transaction processor (who remains nameless) had their servers go into livelock at the beginning of the year. http://status.simple.com/2013/01/07/nye-postmortem/ Blame for the bogus leap flag is thrown at the NTP server run by Apple. -- Steve Allen

[LEAPSECS] the demise of "coordinated"

2013-01-08 Thread Steve Allen
ting their efforts, yet they call what they are providing "UTC". -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015

Re: [LEAPSECS] New Years financial trouble

2013-01-09 Thread Steve Allen
ers who have been discovering livelocked systems for the past week, and the original blog post about the ATM card system is notable simply because it exists publicly. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.998

[LEAPSECS] inaugural effects of abandoning leaps

2013-01-21 Thread Steve Allen
time, the prime meridian corresponding to zero degrees geographical longitude. So without even considering the effects on insurance policies and movie theaters, the ITU-R has recognized that abandoning leap seconds has the effect of making their own regulations self-inco

Re: [LEAPSECS] inaugural effects of abandoning leaps

2013-01-21 Thread Steve Allen
orate responsibility to the shareholder" of insurers and insured. Lawsuits seem inevitable. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng

[LEAPSECS] Future of UTC 2013

2013-02-18 Thread Steve Allen
end of this week. We invite contributions which address the issues described in the Call for Papers at the website. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459

Re: [LEAPSECS] Future of UTC 2013

2013-02-19 Thread Steve Allen
(new) IAU working group on UTC, delegations to the ITU-R, and astronomy. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 S

[LEAPSECS] cultural expectations of time

2013-02-22 Thread Steve Allen
"astronomical time" in this article. Not atomic time, but astronomical time. It's built into the cultural expectations and understanding of what time means from place to place around the globe. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natu

[LEAPSECS] drawing the battle lines

2013-03-20 Thread Steve Allen
what time is have been wrong. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064http://www.ucolick.org/~sl

[LEAPSECS] WP7A is next week in Geneva

2013-04-03 Thread Steve Allen
he UK and Russia -- is that one proposal, or several on the same? -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA

[LEAPSECS] WP7A meeting in progress

2013-09-10 Thread Steve Allen
The meeting of ITU-R WP7A is now in progress. The contributions http://www.itu.int/md/R12-WP7A-C/en include documents on the subject of UTC from ITU-T SG15, France, USA, Germany, Russia and UK I wish good luck to all the delegations. -- Steve Allen WGS-84 (GPS) UCO

[LEAPSECS] joint BIPM/ITU meeting

2013-09-13 Thread Steve Allen
In stark contrast to the usual ITU-R pattern and the previous workshop held by BIPM at the Royal Society, the presentations for next week's workshop in Geneva are being published http://www.itu.int/oth/R0A0E96/en As Mike Meyers used to say "Talk amongst yourselves".

Re: [LEAPSECS] joint BIPM/ITU meeting

2013-09-14 Thread Steve Allen
org/~sla/leapsecs/AAS_13-502_AllenPPT.pdf (which is better as the ppt because of the animated gif) http://www.ucolick.org/~sla/leapsecs/AAS_13-502_Allen.ppt -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 Hig

Re: [LEAPSECS] joint BIPM/ITU meeting

2013-09-17 Thread Steve Allen
On Fri 2013-09-13T06:57:45 -0700, Steve Allen hath writ: > In stark contrast to the usual ITU-R pattern and the previous workshop > held by BIPM at the Royal Society, the presentations for next week's > workshop in Geneva are being published > > http://www.itu.int/oth/R0A0E00

[LEAPSECS] ITU News

2013-09-19 Thread Steve Allen
The ITU-R BIPM workshop has made the cover story of ITU News https://itunews.itu.int/en/ with articles by the workshop participants. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High Street

[LEAPSECS] the ITU has a blog

2013-10-11 Thread Steve Allen
who would have thought the ITU had a presence on wordpress? http://itu4u.wordpress.com/2013/10/11/time-to-leave-leap-seconds-behind/ -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High Street

[LEAPSECS] Future of UTC Charlottesville

2013-12-26 Thread Steve Allen
://www.univelt.com/book=4197 -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064http://www.ucolick.org/~sla/ Hgt

[LEAPSECS] programmer frustration with time

2013-12-31 Thread Steve Allen
sentence is the one that speaks most to this mail list. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064http

[LEAPSECS] metafilter followup of the leap rant

2014-01-01 Thread Steve Allen
by TF.460, and so they are doing that. It remains less clear what sorts of strategies are being adopted by admins of systems that must perform real-time operations, for those admins are not talking about their coping mechanisms. -- Steve Allen WGS-84 (GPS) UCO

Re: [LEAPSECS] Local insertion of leap seconds

2014-01-03 Thread Steve Allen
ttp://www.atsc.org/cms/standards/a153/a_153-Part-2-2011.pdf That specifies that the AT time scale is based on GPS system time, which has no leap seconds. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 H

Re: [LEAPSECS] Standards of time zones -Brooks Harris

2014-01-07 Thread Steve Allen
g closer looks at the legal basis by which those timezones are based on GMT or UTC. Again, in many places it is not clear whether the law chooses between those two. Aside from that, my impression is that most of this query is better answered in the context of the tz mail list than by LEAPSECS. -- St

Re: [LEAPSECS] Standards of time zones -Brooks Harris

2014-01-07 Thread Steve Allen
e might engineer a leap catastrophe in order to influence the votes of the RA delegates. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.0601

Re: [LEAPSECS] Standards of time zones -Brooks Harris

2014-01-08 Thread Steve Allen
nts from various bodies who have considered leap seconds and the failed draft revisions for TF.460 leave me unconvinced that that there is anyone with enough zeal to become such an authority. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II,

Re: [LEAPSECS] Standards of time zones -Brooks Harris

2014-01-09 Thread Steve Allen
3 into Agenda Item 1.14 toned down the intensity a little. Google hasn't shown me anything released since then, so whatever negotiations are going on are staying out of sight. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165

Re: [LEAPSECS] Standards of time zones -Brooks Harris

2014-01-09 Thread Steve Allen
way things are now -- based on actually observing the earth rotating. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064

Re: [LEAPSECS] presentations from AAS Future of Time sessions

2014-01-11 Thread Steve Allen
oors. Which offers you this chilling challenge: to find a way out! Of course, there's always my way. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046

[LEAPSECS] what happened to GMT

2014-01-11 Thread Steve Allen
estrial longitudes from their nonrelativistic Greenwich-based local values to their relativistic geocentric global values. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice:

Re: [LEAPSECS] presentations from AAS Future of Time sessions

2014-01-11 Thread Steve Allen
ore the ITU-R. How they handle the leap second issue will assert whether humanity has any intent of keeping the meaning of the word "day" to be based on the rotation of the earth. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Roo

Re: [LEAPSECS] presentations from AAS Future of Time sessions

2014-01-12 Thread Steve Allen
that USNO and NBS started making adjustments so that they would agree with each other, and not until two months later that NBS began to acknowledge that they were providing UTC according to the BIH. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Science

Re: [LEAPSECS] presentations from AAS Future of Time sessions

2014-01-12 Thread Steve Allen
ermany. Nobody seems to have stopped to ask just how exactly those leap seconds were supposed to be communicated nor handled by systems that could not interpret a telegram from the BIH. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room

Re: [LEAPSECS] presentations from AAS Future of Time sessions

2014-01-14 Thread Steve Allen
TAI, we might even suppress it. Then in 2010 November ITU-T SG 15 recommended the use of PTP (IEEE 1588) in ITU-T Recommendation G.8265.1, an operational time scale based on TAI. These international agencies with multi-letter-acronym names are still not listening to each other about the nitty g

Re: [LEAPSECS] LEAPSECS Digest, Vol 88, Issue 31

2014-01-15 Thread Steve Allen
o arithmetic > with Roman numerals were clergy, and they didn't want to lose their > near-monopoly. a motivation likely persisting in the dramatis personae of this list's issue -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences

Re: [LEAPSECS] QB213 .R4 2013

2014-01-15 Thread Steve Allen
.64..113C > Following L. Essen's Report on the Precision of Atomic Standards of Frequency http://adsabs.harvard.edu/abs/1959AJ.64..120E -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High Street

Re: [LEAPSECS] presentations from AAS Future of Time sessions

2014-01-15 Thread Steve Allen
ds of the USA? Will the ITU-R even dare to allow such a risky vote that might result in their new recommendation being disregarded by countries which want to preserve the meaning of "day"? Or can the delegates only be persuaded to vote if the new TF.460 clea

Re: [LEAPSECS] QB213 .R4 2013

2014-01-16 Thread Steve Allen
s for use both in navigation/telecommunication systems, and for civil time keeping? For reasons not broadcast to the world, many of the national delegations to the 2012 Radiocommunications Assembly did not find the answers given in the draft revision of TF.460 to be satisfactory en

Re: [LEAPSECS] presentations from AAS Future of Time sessions

2014-01-16 Thread Steve Allen
earth rotation. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064http://www.ucolick.org/~sla/

Re: [LEAPSECS] presentations from AAS Future of Time sessions

2014-01-18 Thread Steve Allen
R issued the original Recommendation 460 with no existing implementation at all, let alone two interoperable ones. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046

Re: [LEAPSECS] Common Calendar Time (CCT) -Brooks Harris

2014-01-18 Thread Steve Allen
olks are using TAI-like time, and the vendors of off-the-shelf NTP servers provide configurations that give TAI-like or GPS time even though there is no international regulatory basis for doing that. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sci

Re: [LEAPSECS] presentations from AAS Future of Time sessions

2014-01-18 Thread Steve Allen
nimated discussions about details that are not relevant for the ITU-R decision. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa C

Re: [LEAPSECS] Common Calendar Time (CCT) -Brooks Harris

2014-01-19 Thread Steve Allen
detail, letters were asked to be sent to other groups but that did not happen, other groups griped and capitulated that for their purposes they could form their own interpretation which was close enough for their purposes. -- Steve Allen WGS-84 (GPS) UCO/Lick Obse

Re: [LEAPSECS] Future time

2014-01-19 Thread Steve Allen
e similarly wrong about leap seconds yet life would go on. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064

Re: [LEAPSECS] Common Calendar Time (CCT) - timescale design -Brooks Harris

2014-01-19 Thread Steve Allen
entional count of seconds. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064http://www.ucolick.org/~sla/

Re: [LEAPSECS] Apparent FCC endorsement of dropping leap seconds; FCC seeks comments

2014-01-30 Thread Steve Allen
over UTC. The revised text for Radio Regulation 2.5 makes no sense. If the time scale is defined by SI seconds of cesium without regard to earth rotation then it is unrelated to a date defined on any meridian. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB

Re: [LEAPSECS] happy anniversary pips

2014-02-06 Thread Steve Allen
e no commercial voices at all who wish to be seen as contributing to the revision of TF.460. That is strange and unusual. This nebulous lack of clear technical voice is the atmosphere in which the RA was asked to vote 2 years ago, and it's little wonder that they decided not to deci

[LEAPSECS] time2posix on github

2014-02-11 Thread Steve Allen
Developer elkablo on github has a POSIX timestamps compatibility library for glibc/linux system which uses "right time" visible at https://github.com/elkablo/time2posix and is looking for feedback for the development. -- Steve Allen WGS-84 (GPS

[LEAPSECS] leap second issues in linux kernel

2014-02-12 Thread Steve Allen
y encountered an earlier list of linux kernel leap issues at http://winningraceconditions.blogspot.com/2012_07_01_archive.html I haven't checked to see how much overlap is in the lists. Note that as of this week there are still linux kernel patches that mention leap second issues http://www.spinics.net/lists/stable/msg

Re: [LEAPSECS] Definition of Standard time - Brooks Harris

2014-02-16 Thread Steve Allen
in many jurisdictions there is no statutory basis for the summer/daylight terminology, so no source of clear definitions. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice:

Re: [LEAPSECS] Definition of Standard time - Brooks Harris

2014-02-16 Thread Steve Allen
rst there were apologies expressed by the participants. More recently it has been all out turf war with no mention that the other side might have valid points to be considered. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 1

Re: [LEAPSECS] Apparent FCC endorsement of dropping leap seconds; FCC seeks comments

2014-02-17 Thread Steve Allen
o Regulation 2.5 in a manner that makes no sense and is confusing because it associates the concepts of prime meridian and longitude with a purely atomic time scale that has no relationship to earth rotation nor position on the planet. -- Steve Allen WGS-84 (GPS) UCO/

[LEAPSECS] tz mail list, ado points to Matsakis of USNO

2014-02-28 Thread Steve Allen
time it is, but he knows what a second is. It is again unfortunate that POSIX chose to define the second differently. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831

Re: [LEAPSECS] When will UT1 definition require replacement?

2014-03-20 Thread Steve Allen
the longevity of the expression for > UT1? In short, they find a current difference of around 0.2 s that will grow at a rate of about 1/365.25 * DeltaT -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High Stre

[LEAPSECS] public activity in the UK

2014-04-05 Thread Steve Allen
aspect is outside of their tightly defined technical remit. Another agency involved in these studies is Office for Public Management http://www.opm.co.uk/ I hear that meetings are supposed to take place during the next 4 months, but I haven't found any public announcements of them. --

Re: [LEAPSECS] earth speeding up

2014-04-15 Thread Steve Allen
dy for negative leaps. A negative leap is saying "I missed experiencing some time". Any time sharing system should find it routine that a process was asleep while some time elapsed, and then it wakes up later. -- Steve Allen WGS-84 (GPS) UCO/Lick Observator

Re: [LEAPSECS] earth speeding up

2014-04-15 Thread Steve Allen
spinning slower than any other time in recorded history. Right now we are spinning notably faster than in 1912. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 30

[LEAPSECS] list waking up

2014-04-15 Thread Steve Allen
rance/BIPM document. -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064http://www.ucolick.org/~sla/ Hgt +

[LEAPSECS] UK decision process for leap seconds

2014-04-17 Thread Steve Allen
Today gives more about the public process for making the UK decision on leap seconds. http://www.opm.co.uk/blog/leap-seconds-a-public-dialogue/ "workshop participation will be by invite only" -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB

[LEAPSECS] ITU-R and also UK

2014-05-08 Thread Steve Allen
It is WP7A week in Geneva and the titles show several contributions about the fate of leap seconds under the guise of Agenda item 1.14 http://www.itu.int/md/R12-WP7A-C/en The NewStatesman in the UK has an article on leap seconds http://www.newstatesman.com/2014/04/when-world-skips-beat -- Steve

[LEAPSECS] UK press releases

2014-05-14 Thread Steve Allen
-Time-could-drift-to-the-US-minister-warns.html -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064http

[LEAPSECS] results from the UK dialog

2014-06-09 Thread Steve Allen
-report-final.pdf -- Steve Allen WGS-84 (GPS) UCO/Lick Observatory--ISB Natural Sciences II, Room 165Lat +36.99855 1156 High StreetVoice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064http://www.ucolick.org/~sla/ Hgt +250

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