Mars spins around on its axis in 24 hours and 36 minutes . One Mars Day is about 24 and one half hours long. Mars has a very long year. That is almost twice as long one year on Earth. Mars has an atmosphere, but it is different than Earth's.
Earth has a lot of water vapor in the air.
Other important gases in the air of Mars are nitrogen and oxygen. There is much less oxygen in the air of Mars than we have on Earth. We would not be able to breathe the air on Mars. Mars has water vapor in the air, but Earth has four times as much. Mars has weather, but it is different than Earth's.