On 2022-10-04 4:15 PM, Michael H Deckers via tz wrote:
On 2022-10-04 19:01, dpatte via tz wrote:
I follow numerous astronomy lists, and there is serious discussion at the IAU (International Astronomical Union) to get rid of leap seconds altogether, and possibly replace them by something else, perhaps leap minutes (or even leap hours) - making them far less common. I believe they expect to make a decision soon, though they have been discussing it for years and had planned to make a decision 2 or 3 years ago.
The BIPM is now in charge,
I think this may be a matter of debate or controversy. UTC as currently specified is controlled by ITU-R. Note the line in Draft Resolution D on page 24 "requests that the CIPM consult with the ITU, and other organizations that may be impacted by this decision in order to ..." and "encourages the BIPM to work with relevant organizations to identify the need for updates in the different services that disseminate the value of the difference (UT1-UTC) and to ensure the correct understanding and use of the new maximum value."
and the CGPM on 2022-11-15..18 in Paris will vote on the proposal D on pages 7..8 and 23..24 in [https://www.bipm.org/documents/20126/66742098/Draft-Resolutions-2022.pdf/2e8...]
Note the line in Draft Resolution D on page 24: "decides that the maximum value for the difference (UT1-UTC) will be increased in, or before, 2035," As I understand this there is a country with veto power that will not accept changes to UTC until at least 2035. I believe this is why the 2035 date is mentioned. Several other countries remain opposed to the change. I think this suggests UTC with leap-seconds will be with us for a very long time. -Brooks
Michael Deckers.