Earth's rotation is its spinning movement on its own axis, similar to a top. This rotation takes approximately 24 hours to complete one full turn and is responsible for the occurrence of day and night. As Earth spins, different parts face the Sun, experiencing day, while others face away, experiencing night. Earth's revolution, on the other hand, is its orbital movement around the Sun. This complete orbit takes approximately 365.25 days, which defines a year. A significant effect of Earth's revolution, combined with the tilt of its axis, is the occurrence of different seasons throughout the year.