It probably also has a nineth of the speed, so it's 81 earth years. If they had the same speed, it would be 9 earth years. Probably the first one is more accurate :-??
A Saturn year is approximately 29.5 Earth years long, based on its average distance from the Sun which is about 9.5 times greater than Earth's distance. This is derived from applying Kepler's laws of planetary motion. Thus, Saturn takes around 29.5 Earth years to complete one orbit around the Sun.
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