I'm working on a Roman Empire clock along the same lines, but mine counts time according to the Roman Empire tradition. So daylight is divided evenly by twelve hours, starting from visible sunrise until visible sunset. So in the winter, the daytime "hours" are about 45 min long at my latitude, and in the summer, the daytime "hours" are about 75 min long.
I made mine so I could pray the hours (first hour, third hour, sixth hour, ninth hour), but I wanted to reckon the time for my current location, tied to the solar day, instead of linear time. It's been a fun project. I have it working on my phone with notifications, and the next step is to build it with an e-ink display and gps so that you can use it while traveling to change to your location.
Neat! I've got a similar setup for the hours, though I use normal 24-hours and just adjust the start/end times by relation to current dawn/dusk. I'd love to get it on a clock but alas for now it lives as a Home Assistant automation, playing chimes whenever the hour changes. You wouldn't happen to have a repo for your version would you?
I learned about the hours through the game Pentiment; you may enjoy the clock face used in it to tell in game time: https://pentiment-clock.vercel.app/ .
I'll package it up and share my git repo either this evening or tomorrow morning. Love that Pentiment clock! What a great way to visualize it. My implementation is a C engine that keeps the time calculations separate from the display. I have an app for Windows and one for Android. Both use SDL 2 for the presentation. Mine looks like a 64-element LED screen for a fun crossover feel between Roman time, but 60s-tech presentation. You can fill in your own GPS coordinates and it doesn't talk to the internet at all. It's self-contained. I also have a terminal version that uses no graphics library. I'll post a link separately later so you get a notification.
I've always thought that a 24 hour dial would be better to understand where the sun is as the hour hand will point to its position around the earth relative to you
This is awesome!
It reminds me of some similar things in the watch world:
- Yes Watches makes hybrid analog/digital watches with 24 hour dials and an inner LCD screen for daylight and other astronomical indicators: https://yeswatch.com/wrist-watch/worldwatch/our-story.html
- The Krayon Anywhere has a mechanical sunrise-sunset complication: https://www.hodinkee.com/articles/krayon-anywhere-universal-...
- Some Pebble watchfaces, e.g. Halcyon: https://apps.repebble.com/halcyon_67cb1c5fb7a02301b9a6e415
The YES watch is a great idea, but they are ugly as a kick in the groin.
https://apps.repebble.com/27ea2cc229cd49b0bfc573be
I'd also check out Celestial Noon for an aesthetic Pebble one. You lose some info from halcyon but I like the moon phases
I'm working on a Roman Empire clock along the same lines, but mine counts time according to the Roman Empire tradition. So daylight is divided evenly by twelve hours, starting from visible sunrise until visible sunset. So in the winter, the daytime "hours" are about 45 min long at my latitude, and in the summer, the daytime "hours" are about 75 min long.
I made mine so I could pray the hours (first hour, third hour, sixth hour, ninth hour), but I wanted to reckon the time for my current location, tied to the solar day, instead of linear time. It's been a fun project. I have it working on my phone with notifications, and the next step is to build it with an e-ink display and gps so that you can use it while traveling to change to your location.
Great minds think alike! I've built something much like this here: https://andstuff.org/realtime/
Neat! I've got a similar setup for the hours, though I use normal 24-hours and just adjust the start/end times by relation to current dawn/dusk. I'd love to get it on a clock but alas for now it lives as a Home Assistant automation, playing chimes whenever the hour changes. You wouldn't happen to have a repo for your version would you?
I learned about the hours through the game Pentiment; you may enjoy the clock face used in it to tell in game time: https://pentiment-clock.vercel.app/ .
I'll package it up and share my git repo either this evening or tomorrow morning. Love that Pentiment clock! What a great way to visualize it. My implementation is a C engine that keeps the time calculations separate from the display. I have an app for Windows and one for Android. Both use SDL 2 for the presentation. Mine looks like a 64-element LED screen for a fun crossover feel between Roman time, but 60s-tech presentation. You can fill in your own GPS coordinates and it doesn't talk to the internet at all. It's self-contained. I also have a terminal version that uses no graphics library. I'll post a link separately later so you get a notification.
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I've always thought that a 24 hour dial would be better to understand where the sun is as the hour hand will point to its position around the earth relative to you