BIPM decides to stop adding leap seconds to UTC(bipm.org)
237 points by gliffie | 118 comments
BIPM page for Resolution 5 of the 28th CGPM (2026), on technical actions needed to ensure the continuity of UTC, including ending leap second insertions.
#timekeeping on Hacker News
7 stories tagged timekeeping, newest first.
Teams in Vienna and Beijing have built the first thorium nuclear clocks(nytimes.com)
170 points by gumby | 51 comments
New York Times article on teams in Vienna and Beijing building the first working nuclear clocks based on thorium-229; the capture shows a bot-block page.
Scientists build most accurate atomic clock(phys.org)
50 points by wglb | 23 comments
Phys.org news article about scientists building the world's most accurate atomic clock; the capture shows a Cloudflare verification challenge instead.
NIST ion clock sets new record for most accurate clock(nist.gov)
337 points by voxadam | 118 comments
NIST news release announcing its aluminum ion clock set a record as the world's most accurate atomic clock, measuring time to the 19th decimal place.
Precision Clock Mk IV(mitxela.com)
489 points by ahlCVA | 118 comments
Mitxela project page documenting the development of the Precision Clock Mk IV, a seven-segment LED clock, with video, shop, and kit instruction links.
All clocks are 30 seconds late(victorpoughon.fr)
319 points by fouronnes3 | 312 comments
Blog post by Victor Poughon arguing that everyday clocks are effectively 30 seconds late because of how they truncate displayed minutes.
Where does my computer get the time from?(dotat.at)
776 points by fanf2 | 231 comments
Tony Finch's blog post adapting his RIPE meeting lightning talk explaining how computers obtain the time, from NTP servers back to atomic clocks.