This page collects positions of the UK's National Physical Laboratory on the relationship among GMT, UTC, UT1, and related timescales. "The World Time System" seems to be oriented toward a popular audience. It states " In effect, the seconds of Universal Time (UT1, as GMT is now officially known) vary a little in length in order to keep in step with the changes in the Earth's rotation. This makes UT1 an imprecise method of keeping time."( World Time System 2011)
A similar page about leap seconds states "In effect, the length of the seconds of Universal Time (UT1, as GMT is now officially known) varies slightly to keep in step with the changes in the Earth's rotation."( Leap Second 2016) harv error: multiple targets (2×): CITEREFLeap_Second2016 ( help)
A paper submitted to the ITU/BIPM Workshop on the Future of the International Time Scale in connection with the debate about abolishing leap seconds contains the following bullet points:
A description [3] of a time and frequency radio station states "The timing of these edges is governed by the seconds and minutes of Coordinated Universal Time (UTC), which is always within a second of Greenwich Mean Time (GMT)." ( NPL Time & Frequency Services 2006)
28 February 1969
(aged 64)I'll reply to Austronesier's post in the previous thread because it is more germane to this thread. In the archived threads I referenced earlier in this thread, it came up that none of the automation could handle a passage like this:
The Metre Convention was signed on May 20, 1875; it was based on earlier informal cooperation among several nations.
If it were converted to MDY format in a mechanical way, without complex analysis of the context, it would probably come out like
The Metre Convention was signed on May 20, 1875,; it was based on earlier informal cooperation among several nations. (boldface for emphasis of error)
It's possible, with careful coding, to represent dates according to the preference of the reader when the computer program is writing the entire passage around the date. But no one has put forward code that can convert date formats properly in the midst of editor-written text. Jc3s5h (talk) 16:11, April 22, 2022 (UTC)
Input:
{{convert|365.256363004|d|yr|comma=gaps|abbr=on|lk=out|disp=x|<ref name="IERS" /><br /><small>(|[[julian year (astronomy)|<sub>j</sub>]])</small>}}
Result:
365.256363004 d
[4]
(1.00001742096
a
j)
{{
cite book}}
: |website=
ignored (
help){{
cite news}}
: CS1 maint: extra punctuation (
link){{
cite news}}
: Check date values in: |date=
(
help)IERS
was invoked but never defined (see the
help page).This page collects positions of the UK's National Physical Laboratory on the relationship among GMT, UTC, UT1, and related timescales. "The World Time System" seems to be oriented toward a popular audience. It states " In effect, the seconds of Universal Time (UT1, as GMT is now officially known) vary a little in length in order to keep in step with the changes in the Earth's rotation. This makes UT1 an imprecise method of keeping time."( World Time System 2011)
A similar page about leap seconds states "In effect, the length of the seconds of Universal Time (UT1, as GMT is now officially known) varies slightly to keep in step with the changes in the Earth's rotation."( Leap Second 2016) harv error: multiple targets (2×): CITEREFLeap_Second2016 ( help)
A paper submitted to the ITU/BIPM Workshop on the Future of the International Time Scale in connection with the debate about abolishing leap seconds contains the following bullet points:
A description [3] of a time and frequency radio station states "The timing of these edges is governed by the seconds and minutes of Coordinated Universal Time (UTC), which is always within a second of Greenwich Mean Time (GMT)." ( NPL Time & Frequency Services 2006)
28 February 1969
(aged 64)I'll reply to Austronesier's post in the previous thread because it is more germane to this thread. In the archived threads I referenced earlier in this thread, it came up that none of the automation could handle a passage like this:
The Metre Convention was signed on May 20, 1875; it was based on earlier informal cooperation among several nations.
If it were converted to MDY format in a mechanical way, without complex analysis of the context, it would probably come out like
The Metre Convention was signed on May 20, 1875,; it was based on earlier informal cooperation among several nations. (boldface for emphasis of error)
It's possible, with careful coding, to represent dates according to the preference of the reader when the computer program is writing the entire passage around the date. But no one has put forward code that can convert date formats properly in the midst of editor-written text. Jc3s5h (talk) 16:11, April 22, 2022 (UTC)
Input:
{{convert|365.256363004|d|yr|comma=gaps|abbr=on|lk=out|disp=x|<ref name="IERS" /><br /><small>(|[[julian year (astronomy)|<sub>j</sub>]])</small>}}
Result:
365.256363004 d
[4]
(1.00001742096
a
j)
{{
cite book}}
: |website=
ignored (
help){{
cite news}}
: CS1 maint: extra punctuation (
link){{
cite news}}
: Check date values in: |date=
(
help)IERS
was invoked but never defined (see the
help page).