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The article discusses an ancient Greek water clock that maintained exceptional accuracy for 1,800 years, highlighting its historical significance.
An educational explainer from NIST describing how atomic clocks work, why atoms provide extremely stable timekeeping, and the role of quantum physics and light in measuring time.
A tech enthusiast documents building a custom self-setting LED clock using a Raspberry Pi, 3D printing, and open-source software, after being frustrated with existing options.
The IERS Bulletin C confirms that no leap second will be added at the end of December 2026, maintaining the current UTC-TAI difference of -37 seconds.
Discussion on Hacker News about whether computer systems are prepared for the first negative leap second, with comments debating the risks and alternatives like leap minutes.