24 hours of the day
The SAME? No. "ABOUT" the same? Well, close; a Mars day is a little less than 25 hours.
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.
The length of a day on the planet Mars is 24 hours and 37 minutes. One year on the planet is equal to 680 days on Earth.
Mars.
Mars
Mars has a similar day length to Earth, a little longer at 24h 39m 35s (apparent solar day).
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.)
Mars. A "day" on Mars - which astronomers working with the Lunar Rovers call a "sol" - is about 24 hours 39 minutes 35 seconds. That's a "solar day". The "sidereal day" is a couple of minutes shorter.
687 day
Almost. Mars has a similar day length to Earth, a little longer at 24h 39m 35s (apparent solar 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.