Sun
Night is the dark half
The line is where the Sun sits on the horizon in this simplified drawing. Real sunrise depends on latitude, altitude, and refraction. City sunrise pages use coordinates.
This is a schematic, not a satellite photograph. Polar day and night are simplified.
Sun
The line is where the Sun sits on the horizon in this simplified drawing. Real sunrise depends on latitude, altitude, and refraction. City sunrise pages use coordinates.
Moon
Moonlight on Earth is a separate sketch. Illumination follows the current moon phase fraction.
London
Pick a city for dawn, dusk, and day length in local time.