







JavaScript's Date object has been a source of bugs for three decades. Temporal, which just reached Stage 4, is a modern replacement with immutable types, first-class time zone and calendar support, and nanosecond precision. This is the story of how Bloomberg, Igalia, and the TC39 community spent nine years turning an idea into a shipping standard.
JavaScript Frameworks - Heading into 2026
I suppose after three years, we can consider my review of JavaScript Frameworks an annual event now....

The Problem with Time & Timezones - Computerphile : Computerphile
A web app that works out how many seconds ago something happened. How hard can coding that be? Tom Scott explains how time twists and turns like a twisty-turny...
Your Tuesday in 2030
Or why The Browser Company is being acquired to bring Dia to the masses.

Temporal Logic
Broadly construed, Temporal Logic covers all formalapproaches to representing and reasoning about time and temporalinformation. More narrowly, it usually refers to the modal-logic styleapproach introduced by Arthur Prior in the 1950s under the nameTense Logic and subsequently developed further by manylogicians and computer scientists. Temporal Logic has been widely usedas a formalism for clarifying philosophical issues about time, as aframework for defining the semantics of temporal expressions innatural language, as a language for encoding temporal knowledge inartificial intelligence, and as a tool for specification andverification of computer programs and systems.
Claude Design is a "clock time" solution for a "calendar time" problem
Orgs are betting that they can substitute sense-making with faster artifact delivery. Users are paying the price.

AI World Clocks
The current time as rendered by 9 different AI models. By Brian Moore.

Web Engines Hackfest 2025
An update on leap seconds – Tony Finch
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.
ggtime: A Grammar of Temporal Graphics
Visualizing changes over time is fundamental to learning from the past and anticipating the future. However, temporal semantics can be complicated, and existing visualization tools often struggle to accurately represent these complexities. It is common to use bespoke plot helper functions designed to produce specific graphics, due to the absence of flexible general tools that respect temporal semantics. We address this problem by proposing a grammar of temporal graphics, and an associated software implementation, 'ggtime', that encodes temporal semantics into a declarative grammar for visualizing temporal data. The grammar introduces new composable elements that support visualization across linear, cyclical, quasi-cyclical, and other granularities; standardization of irregular durations; and alignment of time points across different granularities and time zones. It is designed for interoperability with other semantic variables, allowing navigation across the space of visualizations while preserving temporal semantics.

Durable Execution Solutions
Build invincible apps with Temporal's open source durable execution platform. Eliminate complexity and ship features faster. Talk to an expert today!

OpenTimestamps: a timestamping proof standard
OpenTimestamps aims to be a standard format for blockchain timestamping.

Beautifully timed with @sri.xyz's excellent updates to @goals.garden, I've shipped a little project to add two-sync between it and your Every Day Calendar! Get you a QT Py ESP32-S3 and #ATProto all the things! Blog! byjp.me/posts/everyday-calendar/ Code! tangled.org/byjp.me/every-day-calendar/
Goals Garden
🌱 Minor updates : - Use your favorite favicons for your calendar - No more EXIF data for your goal photos - ALT Text option for goal photos - Published lexicons lexicon.store?q=garden.goals - Goal completions to include at-uri fields (along w migration utility to migrate your old completions)
it’s 2026 and you can now keep an exact timestamp of when you meet people in person with youandme.at ! 😌
You & Me
youandme.at