Dark Sky Tonight — GodOfAstro

Is tonight worth going out? The moon decides — this scores the darkness honestly.

Open Dark Sky Tonight
Try it live
The night band runs sunset to sunrise — blue is dark, lit is moonlit. The moon rides its arc.
Inside
  • The score
    0-100 — hours of moonless dark weighted by the moons light.
  • The window
    When the moon is down and the sun deep — the truly dark hours.
  • Phase-aware
    A 90% moon steals the night; a new moon gives it back.
  • Local
    Your sunset, your moonrise — the night as it is where you stand.
Carry it

Web app above is the full experience. Native builds below.


Windows
Soon

macOS
Soon

Linux
Soon

Android / iOS
Soon
Astronomical darkness only — clouds and light pollution are yours to check.