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Card 855 of 9812026-09-22 issue

Observed arrival · 2026-09-22

The light that day

thelightthatday.com Visit website
Editorial interest 84/100 Selection signal · not a rating of the site

A date-and-place artwork that turns daylight, twilight, night, moon, and weather into a one-off colour canvas.

Landing page captured for the 2026-09-22 issue.
For
People commemorating a meaningful date and place
Worth noticing
The same date and place always produce the same canvas, using recorded weather when available.

Field notes

The artwork separates a selected date into daylight, twilight, and night, with each field sized according to its duration at the chosen latitude. Colour is informed by atmospheric and astronomical inputs, including temperature, cloud, rain, sun, season, and moon. The site says recorded weather is used when available, while dates without suitable records receive typical seasonal weather and an accompanying disclosure.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

OpenPublic substance visible
$PaidCommerce or pricing visible
PrettyNotable craft visible
ProPolished or operationally mature
NicheUnusually specific use
ƒJavaScriptBrowser-side code central

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The Approximate Buildings of Mississauga

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thelightthatday.com

Landing page observed 2026-09-22. The live site may have changed.