Here's a breakdown:

* Earth's Rotation: The Earth spins on its axis, completing one full rotation approximately every 24 hours. This rotation is what causes day and night.

* Perspective: As the Earth rotates, different parts of the planet face the sun. When your location faces the sun, it's daytime. When your location faces away from the sun, it's nighttime.

* Sunrise and Sunset: Sunrise occurs when the top edge of the sun appears on the horizon in the east. Sunset occurs when the top edge of the sun disappears below the horizon in the west.

It's important to note:

* The Sun doesn't actually move. It's the Earth's rotation that creates the illusion of the sun rising and setting.

* The angle of the sun in the sky changes throughout the year. This is due to the Earth's tilt on its axis and its orbit around the sun. This causes seasons and variation in the length of days and nights.

Let me know if you have any other questions about the Earth's rotation or the phenomenon of sunrise and sunset!