Earth takes a bit less than 24 hours to complete one rotation (day).
The day on Mars is a bit longer at 24.6 Earth hours.
The time it takes for a planet to rotate on its axis varies depending on the planet. For example, Earth takes about 24 hours to complete one full rotation (a day), while Mars takes about 24.6 hours. Venus has an extremely slow rotation, completing one rotation in about 243 Earth days.
It depends which planet you mean - the Earth takes 23 hours & 56 minutes to rotate once.
On the planet Venus, it takes 5,832 hours to complete a full rotation on the axis
The planet Saturn takes about 10 hours and 39 minutes for it to rotate on its axis. Since the planet does not rotate uniformly the time does vary.
It takes roughly 24 and a half hours. To be more precise, it takes 24 hours 37 minutes 22 seconds.
The fastest planet around the Sun is Mercury, which takes 88 days to orbit. The planet with the fastest rotation is Jupiter, which takes 10 hours to rotate.
On the planet Venus, it takes 5,832 hours to complete a full rotation on the axis
Saturn rotates every 10 hours, 45 minutes and 45 seconds
It takes twenty-four hours or one day. That is why we have night and day.
Neptune takes 16 hours 6 minutes and 36 seconds to rotate or spin once on its axis, or 0.67125 Earth days.
Neptune takes 16 hours 6 min and 36 sec to rotate once on its axis.
URANUS TAKES EIGHTY FOUR DAYS TO ROTATE