Flexi Says: People measure time and age by revolutions and rotations of their home planet, Earth. One revolution of Earth in its orbit around the Sun takes 365.24 days. That is equal to one year on Earth. One rotation of Earth on its axis takes 23 hours and 56 minutes. That is equal to one day on Earth. The other planets of solar system orbit the Sun and rotate on their axes at differing rates. For example, Mercury orbits the Sun in just 88 Earth days. Mercury has a very short year, but it also has very long days. Mercury rotates slowly on its axis, turning exactly three times for every two times it orbits the Sun. Therefore, each day on Mercury is 58 Earth days long. Since people usually measure their ages in years, your age on different planets will depend on their orbits. Compared to your age in years on Earth, you would be younger on Mars, Jupiter, Saturn, Uranus and Neptune, and older on Mercury and Venus. But if you measured your age in days, you would get different results.
