Neptune
Pluto, but its now no longer classed as a planet - its a `Dwarf Planet`
24 hours
how does the planet mercury's spins?
Jupiter spins the third fastest on its axis, with a day lasting about 9.9 hours.
Earth.
The planet Uranus spins on its axis just a little slower than once every 17 hours. Because the axis of the planet is sideways in relation to its orbit, (Uranus spins on its side), daylight lasts for about earth 70 days, and darkness last for about earth 70 days.
the earth spins on it axis
Mars is about the closest to the Earth's rotation among the planets in our solar system. Earth spins in 24 hours; Mars takes 24 hours 40 minutes.
True, Jupiter rotates on it's axis once every 10 hours.
I think it's mercury (:
In our solar system, Jupiters spins fastest of all planets - just under 10 hours to complete a revolution (one day).
In our solar system, no planet spins that fast - the planet with the shortest day (or rotational period) would be Jupiter - but it is just under 10 hours.