Here's why:

* Rotation Period: Jupiter completes one rotation in just under 10 hours. This is significantly faster than Earth's 24-hour rotation period.

* Equatorial Speed: Due to its large size and rapid rotation, Jupiter has an incredibly fast equatorial speed of around 45,000 km/h (28,000 mph).

Other planets with relatively fast rotations include:

* Saturn: Rotates in about 10.5 hours.

* Uranus: Rotates in about 17 hours, but its axis is tilted almost 90 degrees, so it seems to roll on its side as it orbits the Sun.

* Neptune: Rotates in about 16 hours.

While these planets are relatively fast rotators, they are still much slower than the Sun, which completes a rotation in about 25 days.