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Diffstat (limited to 'tz-link.html')
| -rw-r--r-- | tz-link.html | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/tz-link.html b/tz-link.html index 5f1989f014b3..4d2c12b09452 100644 --- a/tz-link.html +++ b/tz-link.html @@ -441,7 +441,7 @@ transition in the <code><abbr>tz</abbr></code> database.</li> Database Parser</a> is a <a href="https://en.wikipedia.org/wiki/C++">C++</a> parser and runtime library with a <a -href="https://en.cppreference.com/w/cpp/chrono.html"><code>std::chrono</code> API</a> +href="https://en.cppreference.com/cpp/chrono"><code>std::chrono</code> API</a> that is a standard part of C++. It is freely available under the <abbr title="Massachusetts Institute of Technology">MIT</abbr> license.</li> @@ -1135,8 +1135,7 @@ Network Time Protocol Best Current Practices</a> applications requiring accurate <abbr>UTC</abbr> or civil time, and is intended for use only in single, well-controlled environments.</li> <li>The <a -href="https://pairlist6.pair.net/mailman/listinfo/leapsecs">Leap -Second Discussion List</a> covers <a +href="https://groups.io/g/LEAPSECS">LEAPSECS List</a> covers <a href="https://gge.ext.unb.ca/Resources/gpsworld.november99.pdf">McCarthy and Klepczynski’s 1999 proposal to discontinue leap seconds</a>, discussed further in @@ -1146,21 +1145,30 @@ leap second: its history and possible future</a>. might be redefined without Leap Seconds</a> gives pointers on this contentious issue. -The General Conference on Weights and Measures +The General Conference on Weights and Measures (CGPM) <a href="https://www.bipm.org/en/cgpm-2022/resolution-4">decided in 2022</a> to discontinue the use of leap seconds by 2035, and requested that no discontinuous adjustments be made to UTC for at least a century. The World Radiocommunication Conference <a href="https://www.itu.int/dms_pub/itu-r/opb/act/R-ACT-WRC.15-2023-PDF-E.pdf">resolved -in 2023</a> to cooperate with this process. One proposal to implement this +in 2023</a> to cooperate with this process. A draft <a +href="https://www.bipm.org/documents/d/guest/cgpm-2026-draft-resolutions">Resolution +C to make continuous UTC effective on 2027-05-20</a>, +and thereby discontinue leap seconds, +has been scheduled for the 28th CGPM starting 2026-10-13 in Paris. +One proposal to implement this would replace leap seconds with seven 13-second leap smears occurring once per decade until 2100, with leap smears after that gradually increasing in size. See: <ul> -<li>Levine J. <a href="https://www.preprints.org/manuscript/202406.0043">A +<li>Levine J. <a href="https://tf.nist.gov/general/pdf/3242.pdf">A proposal to change the leap-second adjustments to coordinated universal time</a>. <em>Metrologia.</em> 2024;61(5):055002. doi:<a -href="https://doi.org/10.1088/1681-7575/ad6266">10.1088/1681-7575/ad6266</a>.</li> +href="https://doi.org/10.1088/1681-7575/ad6266">10.1088/1681-7575/ad6266</a> +with followups in doi:<a +href="https://doi.org/10.1088/1681-7575/ade314">10.1088/1681-7575/ade314</a> +and doi:<a +href="https://doi.org/10.1088/1681-7575/ade315">10.1088/1681-7575/ade315</a>.</li> </ul> However, there is still no consensus on whether this is the best way to replace leap seconds. |