logoalt Hacker News

No leap second will be introduced at the end of December 2026

150 pointsby ChrisArchitecttoday at 2:16 PM111 commentsview on HN

Comments

bombcartoday at 2:45 PM

"To authorities responsible for the measurement and distribution of time" is just the best preamble ever.

show 7 replies
doctoboggantoday at 3:12 PM

What causes the unpredictability in this? I would have guessed we have earth's rotation and orbit down to many decimals. Does geological activity, weather, or something else cause rotation speed differences that we just can't predict?

show 5 replies
t1234stoday at 3:09 PM

They should have a global holiday to celebrate the people who maintain time/date related code in OS kernels that keeps the world from imploding.

show 3 replies
delichontoday at 3:04 PM

Hear me out. We can just mount jet engines along the equator and rotate them 180 to gain or lose time. And then connect them to my snooze button.

show 6 replies
returningfory2today at 3:08 PM

As one HN comment said years ago: I feel leap seconds have always lived in the wrong abstraction layer.

They should live in the same abstraction layer that does leap days and daylight savings: the time zones.

show 3 replies
KboPAacDA3today at 4:04 PM

If the UTC-TAI offset remains at -37s, then it also means the UTC-GPS offset remains at -18s. TAI and GPS have a constant 19s offset from each system.

da-xtoday at 4:15 PM

My longevity will extend one second into the future in nominal terms, increasing the chance to reach the 22nd century a tiny bit.

exegetetoday at 3:11 PM

> The difference between Coordinated Universal Time UTC and the International Atomic Time TAI is :

>

> from 2017 January 1, 0h UTC, until further notice : UTC-TAI = -37s

This means the atomic clock is behind the solar clock by 37 seconds? I also don’t understand the reference to 2017.

show 4 replies
sreantoday at 2:58 PM

What happens to systems such as Spanner under these circumstances?

Is it a headache or a non-issue

show 3 replies
voidUpdatetoday at 2:43 PM

I enjoy how Chrome asks me if I want to auto translate from German to English. Where did it get German from? It's French!

show 2 replies
Suractoday at 4:48 PM

World will end at 26 December so no leap second needed

Wingytoday at 2:37 PM

Does this mean the negative leap second isn't happening anymore?

show 2 replies
clircletoday at 4:18 PM

Cool, I don't have to set my clocks back this December.

dodoisdodotoday at 3:45 PM

The real Time Variance Authority

ComputerGurutoday at 4:44 PM

This announcement is very much a nothing burger; it’s already been more or less decided that adding leap seconds just isn’t going to be a thing anymore (in our lifetime). Here’s on article from 2022: https://www.timeanddate.com/news/astronomy/end-of-leap-secon...

ChrisArchitecttoday at 3:00 PM

Notice they only said leap second.

Meanwhile....

International timekeepers to vote on changing the leap second to a leap hour

https://www.scientificamerican.com/article/international-tim... (https://archive.ph/GnQUj https://news.ycombinator.com/item?id=48842329)

show 1 reply