Hacker News with Generative AI: Timekeeping

The Internet's Time Is Flawed–Why No One Is Talking About It (ycombinator.com)
I’ve been researching how online time services sync over HTTPS, and the results are surprising.

Internet Time, Timekeeping, Technology, HTTPS

10 points by Shellgroup 7 days ago | 26 comments

Chimes at Midnight (2024) (asteriskmag.com)
It’s been an idea for over three decades. How did the clock that will run for 10,000 years become a reality?

Timekeeping, Engineering, Innovation

47 points by chautumn 12 days ago | 15 comments

System Operators to Timekeepers: What Will Replace Leap Seconds? (thenewstack.io)

Timekeeping, Technology, Science, Leap Seconds

3 points by MilnerRoute 19 days ago | 0 comments

Lunase moon phase watch mechanism (genuineideas.com)
Before there were clocks there were the heavens. The sun to mark the day and the moon to light the night- their shadows counting down the hours. Overhead, celestial bodies arced across the sky, charting a map to the seasons and subtly precessing across the centuries.

Watches, Timekeeping, Astronomy, History

70 points by huhtenberg 38 days ago | 18 comments

Morse Code Clock (temporaldiscombobulator.com)

Morse Code, Timekeeping, DIY Projects

10 points by thunderbong 41 days ago | 2 comments

Elektročas HH3 – the most accurate pendulum clock on the planet (cern.ch)
Can a pendulum clock be good to one second in 158 million years? A piece of cake...

Timekeeping, Physics, Clocks, Accuracy

109 points by tverbeure 53 days ago | 42 comments

Elektročas HH3: the most accurate pendulum clock on the planet (cern.ch)
Can a pendulum clock be good to one second in 158 million years? A piece of cake...

Timekeeping, Physics, Clocks, Accuracy

7 points by fanf2 54 days ago | 1 comments

Unix Time and a Modest Proposal (johndcook.com)
It seems our choices are to add leap seconds and endure the resulting confusion, or not add leap seconds and allow the year to drift with respect to the day. There is a third way that deserves more consideration: adjust the position of the earth periodically to keep the solar year equal to an average Gregorian calendar day.

Timekeeping, Science, Proposals

50 points by tapan_jk 56 days ago | 39 comments

Meet your new Time Server (centerclick.com)
CenterClick produces the NTP200 series GPS based NTP Server Appliances that keep your equipment synchronized.

Timekeeping, Networking, Hardware, GPS

18 points by mooreds 69 days ago | 18 comments

Major leap for nuclear clock paves way for ultraprecise timekeeping (nist.gov)
A powerful laser shines into a jet of gas, creating a bright plasma and generating ultraviolet light. The light leaves a visible white line as it interacts with leftover gas in the vacuum chamber. This process helps scientists precisely measure the energy needed to excite the thorium-229 nucleus, which is the core of a future nuclear clock.

Nuclear Physics, Timekeeping, Technology, Scientific Advancements

12 points by abbeyj 75 days ago | 10 comments

Literature Clock (jenevoldsen.com)

Art, Creative Projects, Timekeeping

20 points by fanf2 89 days ago | 6 comments

The Relatively Messy Problem with Lunar Clocks (eos.org)
What time is it on the Moon?

Space Exploration, Astronomy, Timekeeping

4 points by Brajeshwar 98 days ago | 1 comments

The Principles of Mr. Harrison's Time-Keeper (incoherency.co.uk)
This post is a transcription, plus some commentary, of the Board of Longitude's 1767 document "The Principles of Mr. Harrison's Time-keeper", from scans on the University of Cambridge Digital Library.

History, Timekeeping, Science

62 points by surprisetalk 103 days ago | 14 comments

The Sundial Cannon of Åtvidaberg (2017) (amusingplanet.com)
In the not-too-distant past, before the invention of modern timekeeping devices, noontime —the moment when the sun is at the highest position in the sky— held special significance.

History, Timekeeping, Sweden, Astronomy

71 points by choult 129 days ago | 32 comments

'Nuclear clock' breakthrough paves the way for super-precise timekeeping (nature.com)

Physics, Timekeeping, Scientific Breakthroughs

3 points by objectdynamics 169 days ago | 0 comments

An introduction to the remontoire (watchaffinity.co.uk)

Watches, Mechanisms, Timekeeping

28 points by akbarnama 184 days ago | 3 comments

Lenticular Clock (instructables.com)

DIY Projects, Timekeeping, Art

192 points by animal_spirits 186 days ago | 46 comments

Researchers Figure Out How to Keep Clocks on the Earth, Moon in Sync (slashdot.org)