Day/Night World Map
Explore real-time day and night zones across the globe. See where the sun is shining and track the shadow line as Earth rotates.
Click anywhere on the map to get location details and local time information.
How Day and Night Work
Earth's day and night cycle is caused by the planet's rotation on its axis. As Earth spins, different parts face toward or away from the Sun, creating the cycle of day and night that we experience every 24 hours.
- Earth rotates once every 23 hours 56 minutes 4 seconds
- The sun appears to move across the sky due to Earth's rotation
- The terminator line separates day from night zones
- Twilight occurs when the sun is just below the horizon
Sun Position Facts
The sun's position relative to Earth changes throughout the year due to our planet's orbital motion and axial tilt. This creates the seasons and affects day length.
- The subsolar point is where the sun is directly overhead
- Earth's 23.5° tilt causes seasonal changes
- The sun moves between the tropics throughout the year
- Solar noon occurs when the sun reaches its highest point