Mastering Mean Solar Time

Mean solar time is based on the average value of the solar day over the course of the year and contains exactly 24 hours. It is different from solar time because it progresses at a uniform rate, whereas solar time is determined by the position of the Sun.

Mean solar time is more convenient for everyday timekeeping because it progresses at a uniform rate, making it easier for people to keep track of time in their daily lives.

Mean solar time is still inconvenient for practical use because it is determined by the position of the Sun, which means that the exact time of events like noon can vary depending on one's longitude.

Changing longitude by moving east or west affects the exact time of noon because the position of the Sun at that longitude determines when noon occurs. As you move east or west, the time of noon will change accordingly.