Mean Solar Time is a way to measure time based on the position of the Sun in the sky. It averages the variations in the Earth's rotation, providing a consistent timekeeping system. This method divides the day into 24 equal hours, making it easier to track time throughout the year. The concept of Mean Solar Time is essential for creating standard time zones. Each time zone is based on the mean solar time at a specific longitude, allowing people in different regions to coordinate activities. This system helps ensure that clocks are synchronized, promoting efficiency in daily life.