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README.md

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 # Seasonal Hours Clock on Wayland
 
 This is a Rust implementation of cinnamon’s [Seasonal Hours Clock](https://github.com/cinnamon-bun/seasonal-hours-clock), running as a native Wayland application.
+
+## Features
+
+### Seasonal hours!
+
+In cinnamon’s words:
+
+> t would be nice if the 24 hours of UTC time each had a short memorable name. It would make it easier to plan chats with distant friends, since the hour-names would be synchronized around the world.
+>
+> Let's choose a theme like... seasons of the year, just to be confusing. :) Squish a year into 24 hours starting with the winter solstice at UTC 00, which we'll call The Candle Hour.
+
+The seasonal hour names are shown on the colourful ring. Seasons are colour-coded: winter is blue, spring is green, summer is yellow, autumn is brownish/orange.
+
+### Local time
+
+It’s shown on the outermost ring, and as a standard watch. Currently it’s 24h only, but AM/PM version is in the works.
+
+### UTC hours
+
+Just so you can connect the hour names to actual numbers and to help you with inter-timezone planning. These are shown in the inner ring with a bit fainter numbers.
+
+### Day parts
+
+The coloured pie chart in the middle shows
+
+- night time (very dark grey)
+- pre-dawn/post-dusk time (dark blue)
+- the golden hour (golden)
+- daytime (bright blue)
+
+The small red handles show the solar noon and midnight (nadir) times.
+
+The hour hand shows the current time; the golden disc, visible only during daytime, shows the Sun’s position on the sky.
+
+### Moon phase
+
+The innermost circle is the current Moon phase. It tries to be as realistic as possible.
+
+## Limitations
+
+The day parts don’t work well (or sometimes they don’t work at all) around and beyond the arctic lines: i haven’t found a reliable way to differentiate between all-day daytime and all-day nighttime.