RoberriniSource on GitHub

Sundial

A minimalist sun-path clock for your home screen.

Sundial replaces the clock face with the sky. A 24-hour dial runs from midnight at the bottom to noon at the top, an arc marks today's daylight, and a small sun travels along it, so a glance tells you how much of the day is left.

Download APK
  • Free and open source
  • Works offline
  • No tracking
  • Android 12+
Sundial's home screen: the dial at 12:16, with today's sun and moon times
Home screen with the Sundial widget at 12:15
A sun path, not a clock faceSunrise to sunset on a 24-hour dial, with the time in the middle.
Sundial widget in dark theme, coloured from the wallpaper
It follows your wallpaperMaterial You colours, light and dark, rounded to match your launcher.
Style picker with Pillow, Bold, Line, High contrast and Beads
Five stylesFrom soft and rounded to high contrast.
Background shape picker
Ten shapesMaterial You cookies, clover, sunny, burst, or none at all.

Real times, worked out on your phone

The sun comes from NOAA's method and the moon from Meeus, for your approximate location or a city you pick.

Quiet by design

Sundial has no internet permission, so nothing can leave your phone. No accounts, no adverts, no analytics.

Light on battery

The time ticks by itself, and the sun redraws every 15 minutes with an alarm that never wakes your phone.