Sun & Moon

Sun & Moon Tools

Estimate sunrise, sunset, day length, and moon phase with simple educational calculations.

Sun & MoonSunrise and Sunset CalculatorEstimate sunrise and sunset for a latitude, longitude, and date.Sun & MoonTwilight CalculatorEstimate civil, nautical, and astronomical twilight times from latitude and longitude.Sun & MoonSolar Position CalculatorEstimate the sun altitude and azimuth for a location and local time.Sun & MoonMoon Phase CalculatorEstimate the moon phase for a selected date.Sun & MoonFull Moon CalendarEstimate upcoming full moon dates for the next several months.Sun & MoonSeasons CalculatorShow approximate equinox and solstice dates for a selected year.Sun & MoonEquinox and Solstice CountdownCount down to the next approximate equinox or solstice.Sun & MoonDay Length CalculatorEstimate daylight duration from sunrise and sunset calculations.