Light window
Civil twilight and usable outdoor light.
Dawn—
Dusk—
Solar noon—
Usable light—
Daily sky context
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Requesting authoritative Sun, Moon, phase, and seasonal calculations from the U.S. Naval Observatory.
Sunrise—
Sunset—
Daylight—
Moon light—
Moon context
Illumination and local rise/set timing.
Phase—
Moonrise—
Moonset—
Next phase—
Seasonal clock
Equinoxes, solstices, and Earth apsides.
Next marker—
Date—
Time—
Source API—