Re: [time-nuts] What time...

On Fri, Dec 21, 2012 at 11:08 AM, Jim Lux wrote: > > The long count rollover isn't solstice linked.. it's just a sequential day > count (think TAI)..that happens to roll over on the same "day" as the > solstice occurs.. > How convenient. -- Sanjeev Gupta +65 98551208 http://www.linkedin.c

Re: [time-nuts] What time...

On 12/20/12 11:57 AM, David McGaw wrote: The Mayan calendar, if that is what you are talking about, rolls over at the solstice - Dec. 21, 2012 11:12 UTC. Hunt back in the archives a couple days... The long count rollover isn't solstice linked.. it's just a sequential day count (think TAI)..t

Re: [time-nuts] What time...

CNN should be on top of it. -- From: "Burt I. Weiner" <[2]b...@att.net> Sent: Thursday, December 20, 2012 11:16 AM To: <[3]time-nuts@febo.com> Subject: [time-nuts] What time... Excuse me for askin

Re: [time-nuts] What time...

** >> From: "Burt I. Weiner" >> Sent: Thursday, December 20, 2012 11:16 AM >> To: >> Subject: [time-nuts] What time... >> >> Excuse me for asking... Can anyone tell me what time the world is >>> supposed to come to an

Re: [time-nuts] What time...

: Thursday, December 20, 2012 11:16 AM To: Subject: [time-nuts] What time... Excuse me for asking... Can anyone tell me what time the world is supposed to come to an end tomorrow? We have a lot of shopping to do and thought it would be nice to be home and watch it on happen on TV. Thanks, Burt, K6O

Re: [time-nuts] What time...

CNN should be on top of it. -- From: "Burt I. Weiner" Sent: Thursday, December 20, 2012 11:16 AM To: Subject: [time-nuts] What time... Excuse me for asking... Can anyone tell me what time the world is supposed to come to an en

Re: [time-nuts] What time...

Le 20 déc. 2012 à 18:16, Burt I. Weiner a écrit : > Excuse me for asking... Can anyone tell me what time the world is supposed to > come to an end tomorrow? We have a lot of shopping to do and thought it > would be nice to be home and watch it on happen on TV. > I think its nigh. Here in Fr

Re: [time-nuts] What time...

Just set up your PVR to record it. You can watch it later. Oh . uh . wait. Ed On 12/20/2012 11:16 AM, Burt I. Weiner wrote: Excuse me for asking... Can anyone tell me what time the world is supposed to come to an end tomorrow? We have a lot of shopping to do and thought it would be

[time-nuts] What time...

Excuse me for asking... Can anyone tell me what time the world is supposed to come to an end tomorrow? We have a lot of shopping to do and thought it would be nice to be home and watch it on happen on TV. Thanks, Burt, K6OQK Burt I. Weiner Associates Broadcast Technical Services Glendale, Ca

Re: [time-nuts] What time is it?

:) Shame he didn't get the start time correct. Le 17/11/2010 15:15, Collins, Graham a écrit : I found today's November 17, 2010 Dilbert rather funny. http://www.dilbert.com/ cheers, Graham ___ time-nuts mailing list -- time-nuts@febo.com To unsub

[time-nuts] What time is it?

I found today's November 17, 2010 Dilbert rather funny. http://www.dilbert.com/ cheers, Graham ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instruction

Re: [time-nuts] What time is it anyway?

Magnus, Excellent links, as always, many thanks. Much to digest. Clock comparison looks an interesting area. Steve On 30 March 2010 13:12, Magnus Danielson wrote: > Steve Rooke wrote: >> >> So there are 250 clocks, presumably, spread around the World and owned >> by the member countries of the

Re: [time-nuts] What time is it anyway?

On 30 March 2010 07:46, Tom Van Baak wrote: > Below is a nice description of how UTC is generated including > a chart showing how individual timing laboratories, BIPM and > IERS are connected: > > Thanks

Re: [time-nuts] What time is it anyway?

Steve Rooke wrote: So there are 250 clocks, presumably, spread around the World and owned by the member countries of the BIPM. There is a fair spread geographically, yes. See map: http://www.bipm.org/en/scientific/tai/tai.html Their time is somehow compared centrally and an "absolute" time is

Re: [time-nuts] What time is it anyway?

Below is a nice description of how UTC is generated including a chart showing how individual timing laboratories, BIPM and IERS are connected: /tvb ___ time-

Re: [time-nuts] What time is it anyway?

Behalf Of Steve Rooke Sent: Monday, March 29, 2010 8:10 AM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] What time is it anyway? So there are 250 clocks, presumably, spread around the World and owned by the member countries of the BIPM. Their time is somehow

Re: [time-nuts] What time is it anyway?

So there are 250 clocks, presumably, spread around the World and owned by the member countries of the BIPM. Their time is somehow compared centrally and an "absolute" time is determined from them. Each clock will then have a delta to apply to it's own time to provide the BIPM "absolute" time which

Re: [time-nuts] What time is it anyway?

lain F4GBC - Original Message - From: "Gerhard Hoffmann" To: "Discussion of precise time and frequency measurement" Sent: Sunday, March 28, 2010 1:18 PM Subject: Re: [time-nuts] What time is it anyway? <>___ time-nuts m

Re: [time-nuts] What time is it anyway?

Hi Bob, Bob Camp wrote: Hi I believe that another component that BIPM considers is earth motion data. That data is not quite as common as cesium time scales are. The cesiums keep the agreed upon second tick "right". The earth motion decides when to drop or add a second. It's the drop / add thi

Re: [time-nuts] What time is it anyway?

Hi I believe that another component that BIPM considers is earth motion data. That data is not quite as common as cesium time scales are. The cesiums keep the agreed upon second tick "right". The earth motion decides when to drop or add a second. It's the drop / add thing that drives all the "

Re: [time-nuts] What time is it anyway?

Bob Camp wrote: Hi If you get arrested for keeping your bar open 21 ns after official closing time, it's the USNO version you need to be "right with". The BIPM isn't going to help you with the judge. No, for that one it would be NIST, unless you where to navigate US marines out of the bar

Re: [time-nuts] What time is it anyway?

But if you think about it, 21ns... that's what they call local time. On 29 March 2010 01:48, Steve Rooke wrote: > I've switched off my t'bolt. If I can't be closer than 21ns to the > correct time, it just isn't worth it. > > :) > > On 29 March 2010 01:36, Bob Camp wrote: >> Hi >> >> If you get a

Re: [time-nuts] What time is it anyway?

Arnold Tibus wrote: The answer looks to me a bit difficult reading the USNO definition : INTERNATIONAL TIME SCALES AND THE B.I.P.M. http://tycho.usno.navy.mil/bipm.html citing: "...the U.S. Naval Observatory timescale, UTC(USNO), and its real-time implementation, Master Clock #2 (MC #2),

Re: [time-nuts] What time is it anyway?

I've switched off my t'bolt. If I can't be closer than 21ns to the correct time, it just isn't worth it. :) On 29 March 2010 01:36, Bob Camp wrote: > Hi > > If you get arrested for keeping your bar open 21 ns after official closing > time, it's the USNO version you need to be "right with". The

Re: [time-nuts] What time is it anyway?

Hi If you get arrested for keeping your bar open 21 ns after official closing time, it's the USNO version you need to be "right with". The BIPM isn't going to help you with the judge. Bob On Mar 28, 2010, at 7:58 AM, Arnold Tibus wrote: > The answer looks to me a bit difficult reading the USN

Re: [time-nuts] What time is it anyway?

And all this goes to prove is that: A man with one clock knows what time it is; A man with two clocks is never quite sure. :) On 29 March 2010 00:58, Arnold Tibus wrote: > The answer looks to me a bit difficult reading the USNO definition : > > INTERNATIONAL TIME SCALES AND THE B.I.P.M. > http://

Re: [time-nuts] What time is it anyway?

The answer looks to me a bit difficult reading the USNO definition : INTERNATIONAL TIME SCALES AND THE B.I.P.M. http://tycho.usno.navy.mil/bipm.html citing: "...the U.S. Naval Observatory timescale, UTC(USNO), and its real-time implementation, Master Clock #2 (MC #2), are kept within a close

Re: [time-nuts] What time is it anyway?

Eventually you get there: http://www.bipm.org/en/scientific/tai/time_server.html and find out that these folks have signed to it: http://www.bipm.org/en/convention/member_states/ Think I'll skip the research as to how much of the World this covers. On 29 March 2010 00:36, Magnus Danielson wr

Re: [time-nuts] What time is it anyway?

Chris Cheney wrote: I think that is the BIPM (http://www.bipm.org/en/home/) in association with the IERS (http://hpiers.obspm.fr/) Peter On 28 March 2010 10:29, Steve Rooke wrote: What puzzles me is who is the keeper of "legal time" for the other 93.4% of land mass and 95.5% of populati

Re: [time-nuts] What time is it anyway?

Steve Rooke wrote: What puzzles me is who is the keeper of "legal time" for the other 93.4% of land mass and 95.5% of population of the World other than the US. Here in Germany it's the PTB: (Physikalisch-Technische Bundesanstalt)

Re: [time-nuts] What time is it anyway?

> I think that is the BIPM (http://www.bipm.org/en/home/) in association > with the IERS (http://hpiers.obspm.fr/) > > Peter > > > On 28 March 2010 10:29, Steve Rooke wrote: > > What puzzles me is who is the keeper of "legal time" for the other > > 93.4% of land mass and 95.5% of population of

Re: [time-nuts] What time is it anyway?

On 28 March 2010 22:38, Peter Vince wrote: > I think that is the BIPM (http://www.bipm.org/en/home/) in association This organisation seems to be more associated with physical standards. > with the IERS (http://hpiers.obspm.fr/) This organisation claims to be an International body on Earth rota

Re: [time-nuts] What time is it anyway?

On 28 March 2010 22:56, Rex wrote: > Just curious where you got those percentage numbers? A quick check says they > are in the ball park, but wondering where you got them. Wikipedia is your friend. -- Steve Rooke - ZL3TUV & G8KVD A man with one clock knows what time it is; A man with two clock

Re: [time-nuts] What time is it anyway?

Steve Rooke wrote: What puzzles me is who is the keeper of "legal time" for the other 93.4% of land mass and 95.5% of population of the World other than the US. Just curious where you got those percentage numbers? A quick check says they are in the ball park, but wondering where you got th

Re: [time-nuts] What time is it anyway?

I think that is the BIPM (http://www.bipm.org/en/home/) in association with the IERS (http://hpiers.obspm.fr/) Peter On 28 March 2010 10:29, Steve Rooke wrote: > What puzzles me is who is the keeper of "legal time" for the other > 93.4% of land mass and 95.5% of population of the World other th

Re: [time-nuts] What time is it anyway?

What puzzles me is who is the keeper of "legal time" for the other 93.4% of land mass and 95.5% of population of the World other than the US. On 28 March 2010 04:49, David Forbes wrote: > At 11:11 AM -0400 3/27/10, Bob Camp wrote: >> >> I would bet that if you went deep enough into the details, t

Re: [time-nuts] What time is it anyway?

At 11:11 AM -0400 3/27/10, Bob Camp wrote: I would bet that if you went deep enough into the details, that the Army at some point was less than enthusiastic about having to ask the Navy when ever they wanted to know what time it was. My guess is that the Army just asked Western Union, who as

Re: [time-nuts] What time is it anyway?

Hi Given the tradition of Army vs Navy, I'd bet that there is a counter argument to that . If there is, I've never heard it. I'm just guessing that there's got to be one. Bob On Mar 27, 2010, at 11:32 AM, Mike S wrote: > At 11:11 AM 3/27/2010, Bob Camp wrote... >> I would bet that if you

Re: [time-nuts] What time is it anyway?

At 11:11 AM 3/27/2010, Bob Camp wrote... I would bet that if you went deep enough into the details, that the Army at some point was less than enthusiastic about having to ask the Navy when ever they wanted to know what time it was. The Navy, of course, has that role because time has traditiona

Re: [time-nuts] What time is it anyway?

Hi Traditionally USNO is the keeper of "legal time". NIST is the keeper of "legal frequency". Because of the earlier reference to "solar time", they actually kept a regular schedule of observations of the sun going in Washington. They were running them at least into the 1990's. If I remember

Re: [time-nuts] What time is it anyway?

At 11:31 PM 3/26/2010, Eric Fort wrote... What time is it? Why is that the correct time? How does one know what the correct time is? Is the "proper and correct" time reference codified as statue? (thinking of the US) Where? 15 USC Sec. 261: "For the purpose of establishing the standard time o

Re: [time-nuts] What time is it anyway?

Is the "proper and correct" time reference codified as statue? (thinking of the US) Where? NBS Monograph 140... Brian Eric Fort wrote: Hopefully the following questions will begin some discussion leading to a better understanding of What time is and where it comes from in a civil, legal, and e

Re: [time-nuts] What time is it anyway?

eric.f...@gmail.com said: > Hopefully the following questions will begin some discussion leading to a > better understanding of What time is and where it comes from in a civil, > legal, and everyday living context. Here is a a lot of good background: Legal and Technical Measurement Requireme

Re: [time-nuts] What time is it anyway?

I expect that responses will confirm N8ZM's comment in spades. :-) -ls- Eric Fort wrote: > Hopefully the following questions will begin some discussion leading to a > better understanding of What time is and where it comes from in a civil, > legal, and everyday living context. > > What time

[time-nuts] What time is it anyway?

Hopefully the following questions will begin some discussion leading to a better understanding of What time is and where it comes from in a civil, legal, and everyday living context. What time is it? Why is that the correct time? How does one know what the correct time is? Is the "proper an