Moon & Ephemeris Calculator

Real-time moon phase, rise/set times, and astronomical twilight for your location

Detecting your location…

See today’s moon phase and illumination percentage alongside precise moonrise and moonset times for your exact location — updated live in your browser using the SunCalc astronomical library.

The True Darkness Window shows when astronomical twilight ends — the moment the sky reaches its darkest and astrophotographers can capture faint deep-sky objects without twilight interference.

Your location is only used for local calculations. No data ever leaves your device beyond an optional place-name lookup to display a readable city name.