Approx. 24.63 hours. so it very similar to Earth's.
The SAME? No. "ABOUT" the same? Well, close; a Mars day is a little less than 25 hours.
Mars.
Mars
Mars. Although its year is significantly longer than an Earth year (time taken to orbit the Sun), its day length is very similar. It's slightly longer at about 24 hours and 37 mins. (That is the time taken for the planet to spin once on its axis, called a "sidereal" day.)
687 day
24 hours of the day
A day on Mars is not much longer at all than on Earth. It takes 24 hours and 40 minutes for a day to pass on Mars.
The length of a day on Mars is approximately 24 hours and 39 minutes.
25 Earth hours
Mars has a day of 24 hours 39 minutes and 35 seconds
No planet really does have a day "the same length as Earth", but Mars definitely has the one that's the closest. The day length of Mars is just over half an hour longer than Earth's.
About 24 hours 39 minutes is the length of the "solar day" on Mars.