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Geochron

Side project, Geochron (look it up) -like display made entirely in Javascript so Wallpaper engine can run it. Despite being a "web" wallpaper, this doesn't need the internet to run at all. All compute is done locally.

Geochron is a trademark and typically the name of a type of map/display/world clock. The terminator line (divider between day and night) is static on such displays, and the map is the part that moves. The map updates every 6 seconds. The terminator line geometry updates once per day. The clock updates once per second.

Most of my code is actual garbage as I don't do this for a living. It's also on GitHub, lookup "Geochron-WPE". Any contribution appreciated.

In the future, I intend to add a lot more customization, a demonstration mode that speeds everything up, and also making use of the real estate at the bottom of the screen.

The map will dynamically resize to always be 1:2. The base images in the background are 3000x6000. Terminator line and gridlines are SVG. I spent way too much time figuring out those night lights so I hope you appreciate them.

Any feedback very welcome. I'm particularly looking for ways to optimize the code (despite it having next to no impact on the system) as well as ideas on how to use the bottom of the screen.

2025-06-29: Finally added proper persistent user settings (hopefully)