GoldnBlue

Photographers chase the golden hour. Aviators read civil twilight to know when flight rules change. Sailors navigate by the nautical horizon. Astronomers wait for astronomical night. Runners and cyclists plan around the daylight they'll have. Morning-light folks tuning their circadian rhythm watch the same sunrise. Hikers and birders just want to know when the light will go - and come back.

GoldnBlue is a Wear OS Tile that lays the day's solar phases out on your wrist - sunrise, sunset, solar noon, civil/nautical/astronomical twilight, the golden hour and the blue hour - plus the moon's current phase and rise/set. Pick which events you want to see; the tile shows the time of each event and a live countdown to the next one - all for your current location.

The outer ring is a sky-colour gradient that dynamically follows the sun's altitude through the day.

Everything is computed on the watch. The default mode doesn't even ask for permissions: GoldnBlue takes a reasonable guess at your location from your timezone (good to about ±150 km), and only asks for GPS if you switch to precise mode. Optional opt-in place-name lookups are the only thing that ever touches the internet - and only OpenStreetMap, never us.