Universal time?

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Profile Chris SCrowdfunding Project Donor
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Message 1713434 - Posted: 15 Aug 2015, 15:11:46 UTC

The Colonies are getting uppity again :-)

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Message 1713440 - Posted: 15 Aug 2015, 15:26:56 UTC - in response to Message 1713434.  

The Colonies are getting uppity again :-)

Two observations:

"The Colonies" or "the colonies"?

How much hubris is in your statement? Isn't that hubris the very reason for the state of the world today?
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Message 1713827 - Posted: 16 Aug 2015, 6:55:10 UTC
Last modified: 16 Aug 2015, 6:56:15 UTC

Not really. GMT and UTC are used pretty much everywhere including here at seti, and is accepted as a world time standard. I just thought it noticeable that the majority of the countries wanting opt out from it were once Britsh Colonies and one, Australia, is talking about becoming a Republic. Becoming an independent country doesn't always mean opting out of world standards as well.
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Message 1713839 - Posted: 16 Aug 2015, 7:55:49 UTC

I have wondered for a long time why the rest of the world so easily accepted England's definition of longitude with the zero point set by them. I assume it was because, at the time it was established, Britannica ruled the waves.
Bob DeWoody

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Message 1713849 - Posted: 16 Aug 2015, 9:44:14 UTC
Last modified: 16 Aug 2015, 9:55:06 UTC

You are about right Bob. The UK did start it, and other nations were happy to join in.

Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London, from 1675. GMT was formerly used as the international civil time standard, now superseded in that function by Coordinated Universal Time (UTC).

As the United Kingdom grew into an advanced maritime nation, British mariners kept at least one chronometer on GMT to calculate their longitude from the Greenwich meridian (for navigation), which was by convention considered to have longitude zero degrees, internationally adopted in the International Meridian Conference of 1884. Greenwich Mean Time was adopted across the island of Great Britain by the Railway Clearing House in 1847, and by almost all railway companies by the following year, from which the term "railway time" is derived.

The main point is that the world now uses UTC for all precise scientific measurements, but by convention we use GMT in our daily lives. People still set their watches by the pips on the 6 o'clock news, despite modern radio controlled clocks. Old habits die hard.

UTC was officially formalized in 1960 by the International Radio Consultative Committee in Recommendation 374, having been initiated by several national time laboratories. The system was adjusted several times until leap seconds were adopted in 1972 to simplify future adjustments. A number of proposals have been made to replace UTC with a new system that would eliminate leap seconds but no consensus has yet been reached.

The current version of UTC is defined by International Telecommunications Union Recommendation (ITU-R TF.460-6), Standard-frequency and time-signal emissions, and is based on International Atomic Time (TAI).
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Message 1713851 - Posted: 16 Aug 2015, 10:20:53 UTC
Last modified: 16 Aug 2015, 10:22:15 UTC

Bob Mentioned Britannica. Strictly speaking that is Latin for "of or pertaining to Britain", as in the famous encyclopaedia. Whereas Britannia is the Latin word used by the Greeks and Romans 100BC onwards the the group of islands we know as the UK (Albion & Caledonia).

Yes fess up time, I had to look it up, I wasn't sure either!
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Message 1713956 - Posted: 16 Aug 2015, 15:42:18 UTC

One time standard is fine with me, but until that happens, I just wish I could change my Message board preferences to show what I currently observe as my time, which is EST.
The mind is a weird and mysterious place
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Message 1713987 - Posted: 16 Aug 2015, 16:46:47 UTC

Seti has standardised on UTC Gordon, as most scientific stuff has. It's the content of messages that matter not the time they were sent.
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Message 1713989 - Posted: 16 Aug 2015, 16:48:48 UTC - in response to Message 1713987.  

Seti has standardised on UTC Gordon, as most scientific stuff has. It's the content of messages that matter not the time they were sent.



Oh well, phooey. I'll go back in my little hole. ;~)
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Message 1714350 - Posted: 17 Aug 2015, 10:05:08 UTC - in response to Message 1713434.  

The Colonies are getting uppity again :-)

BBC

it's not a problem with GMT & UMT...unless a politics come into view! ;)

more problem is "Daylight saving", especially in our society...in which daylight savings doesn't produce no savings @ all...

so if u agree, sign here:
https://www.change.org/p/government-stop-daylight-saving-time?recruiter=298694645&utm_source=share_petition&utm_medium=copylink
;)

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Message 1714359 - Posted: 17 Aug 2015, 10:31:28 UTC

DST has nothing to do with GMT or UTC. We do not sign petitions in a science thread. Go bang your personal drum elsewhere please.
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Message 1714380 - Posted: 17 Aug 2015, 10:52:32 UTC - in response to Message 1714359.  
Last modified: 17 Aug 2015, 10:52:50 UTC

DST has nothing to do with GMT or UTC. We do not sign petitions in a science thread. Go bang your personal drum elsewhere please.

https://cdn.urbantimes.co/wp-content/uploads/2014/04/baa0c621409a710233685deecc6e66bb-how-queen-elizabeth-ii-felt.jpg

LoL

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Message 1716280 - Posted: 21 Aug 2015, 2:15:11 UTC - in response to Message 1713827.  

Chris i'm not shore your correct about Australia . I have not herd anthing about changing from UT . One state has Western Australia but i don't think it's got anything to do with opting out of UT . It's more to do with daylight savings .

Just because some are calling for us to become a Republic doesn't mean we are going to opt out of world standards unless said standards are crap anyway .

You cheeky blighter you :)

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Message 1717594 - Posted: 24 Aug 2015, 2:36:26 UTC - in response to Message 1714359.  

DST has nothing to do with GMT or UTC. We do not sign petitions in a science thread. Go bang your personal drum elsewhere please.

When did you get to decide the rest of us do not sign petitions in an s@h science thread?
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Message 1717596 - Posted: 24 Aug 2015, 2:37:35 UTC - in response to Message 1713849.  

I found other sources that indicate the UK did not invent longitude.


You are about right Bob. The UK did start it, and other nations were happy to join in.

Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London, from 1675. GMT was formerly used as the international civil time standard, now superseded in that function by Coordinated Universal Time (UTC).

As the United Kingdom grew into an advanced maritime nation, British mariners kept at least one chronometer on GMT to calculate their longitude from the Greenwich meridian (for navigation), which was by convention considered to have longitude zero degrees, internationally adopted in the International Meridian Conference of 1884. Greenwich Mean Time was adopted across the island of Great Britain by the Railway Clearing House in 1847, and by almost all railway companies by the following year, from which the term "railway time" is derived.

The main point is that the world now uses UTC for all precise scientific measurements, but by convention we use GMT in our daily lives. People still set their watches by the pips on the 6 o'clock news, despite modern radio controlled clocks. Old habits die hard.

UTC was officially formalized in 1960 by the International Radio Consultative Committee in Recommendation 374, having been initiated by several national time laboratories. The system was adjusted several times until leap seconds were adopted in 1972 to simplify future adjustments. A number of proposals have been made to replace UTC with a new system that would eliminate leap seconds but no consensus has yet been reached.

The current version of UTC is defined by International Telecommunications Union Recommendation (ITU-R TF.460-6), Standard-frequency and time-signal emissions, and is based on International Atomic Time (TAI).
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Message 1717630 - Posted: 24 Aug 2015, 5:33:28 UTC

Daylight Savings Time is decided upon by individual countries as well as it's duration and is not used by the scientific community as such. My original post in this thread was more about how and why the zero meridian was selected to run through Greenwich, England and not, say, Madrid, Spain or Lisbon, Portugal both early seapowers.
Bob DeWoody

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Message 1717648 - Posted: 24 Aug 2015, 7:32:31 UTC - in response to Message 1717630.  
Last modified: 24 Aug 2015, 7:33:02 UTC

Daylight Savings Time is decided upon by individual countries as well as it's duration and is not used by the scientific community as such. My original post in this thread was more about how and why the zero meridian was selected to run through Greenwich, England and not, say, Madrid, Spain or Lisbon, Portugal both early seapowers.

Yes. It's strange when you think about Colombus and Vasco da Gama who didn't used GMT or UTC.
In navigation it's difficult to know what longitude you are in.
So you used a clock and dead reckoning.
https://en.wikipedia.org/wiki/Dead_reckoning
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Message 1717660 - Posted: 24 Aug 2015, 9:06:17 UTC

John Harrison, a Yorkshire carpenter, built his chronometer in 1759 but had problems in having it admitted by the Admiralty.
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Message 1717690 - Posted: 24 Aug 2015, 11:10:49 UTC - in response to Message 1717660.  

John Harrison, a Yorkshire carpenter, built his chronometer in 1759 but had problems in having it admitted by the Admiralty.
Tullio

There was a documentary program on the Science Channel about his effort to build a reliable chronometer that would work at sea. Delicate equipment on ships at sea in those days had a rough go of it and keeping the time piece relatively level was nearly impossible. Nowadays anybody with a cheap digital watch and a way to figure out when local noon is can figure out their longitude with enough accuracy to navigate to their destination.
Bob DeWoody

My motto: Never do today what you can put off until tomorrow as it may not be required. This no longer applies in light of current events.
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Message 1718010 - Posted: 25 Aug 2015, 2:48:15 UTC

Sigh.
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