It has been a couple of years since my previous blog post about leap seconds, though I have been tweeting on the topic fairly frequently: see my page on date, time, and leap seconds for an index of threads. But Twitter now seems a lot less likely to stick around, so I’ll aim to collect more of my thinking-out-loud here on my blog.
Earth Rotation Records Spur October Vote to Avert Negative Leap Second
Negative leap second risk is driving an October 2026 CGPM vote to replace the 54-year-old leap second with a leap hour. Earth set rotation speed records in 2024 and 2025, and timekeepers estimate a 30% chance the unprecedented event could hit before 2035 — an outcome with no software patch history
Spark - Take back your timeline
Social media is addictive and manipulative. It's time for social that puts the user in control.
Gap Week: March 20, 2026
Hey folks! I was traveling this week to give an invited talk at Western Michigan University, so I don’t have a blog post ready for you. That’ll also probably be the case for next week (…
How to Hack Time, With C2PA | Blog
The most impressive hacking stunt from cinema history comes from Kung Fury (2015), in which Hackerman hacks time itself. He uses this power to correct historic misdeeds. But what would I do with the ability to hack time? Personally I'm more afraid of the butterfly effect, so I'd just go back a few hours to tell myself the winning lottery numbers.
Living with two clocks
Staying with unbearable thoughts, and searching for a politics that’s equal to these times.
Dynamic time decay - For You notes
The For You feed has felt a bit too static because older posts (posted 12-24 hours ago) tend to sit at the top as they have more time to accumulate more likes. To make it surface fresher content more often I applied an exponential time decay with a half-life of 6 hours.
Life Cycle - Track Your Time App - App Store
Download Life Cycle - Track Your Time by Sleep Cycle AB on the App Store. See screenshots, ratings and reviews, user tips, and more apps like Life Cycle - Track…
AI World Clocks
The current time as rendered by 9 different AI models. By Brian Moore.
gregpak.link: Yes We Blog! Webring
A webring for real people who actually blog. Yes, a functioning webring in 2025!
Announcing mu.social, and other news - Updates from the Modal Foundation
Major updates and announcements
Letting things build
This week I put together a reading list for my digital aura series. I recall starting to write around Thanksgiving — but when I looked back at my reading, I’d started reading for it months earlier. (No wonder it’s felt like such a big endeavor!)
Recently I’ve been thinking about a couple of... - Adam Wood
Recently I’ve been thinking about a couple of different tech-related things that sort of overlap. One is the (emerging) shape of the new social web; the other is a pull I’m feeling to try and lessen reliance on American companies. I’ve been interested in / concerned by what became of social media for some time.1 Since the sundering of Twitter in 2022, I’ve kept an eye on the various alternatives, with particular interest in Mastodon and Bluesky. Actually, to be more accurate, my interest has been in the protocols behind those platforms: ActivityPub and AT Protocol respectively. Both have their...
Notable links: August 14, 2026
Chicago Public Media is building a social network for America's third largest city. Forget AI - this is the thing I'm most excited about in news technology.
A funny thing happened in the Atmosphere - Pardy Time DevLog
The Atmosphere Challenge