SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/aero-mars-day-length

How long is one rotation of Mars?

About 24.6 hours, close to an Earth day.

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  1. About 24.6 hours ✔
  2. About 10 hours
  3. About 59 Earth days

Why: Mars spins once in about 24 hours and 37 minutes. That makes a Martian day only a little longer than a day on Earth.

Huh, didn't know that: Scientists call a Martian solar day a sol.

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A Mars clock is down to Earth, but runs a little late.
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References

Answer: About 24.6 hours. Mars spins once in about 24 hours and 37 minutes. That makes a Martian day only a little longer than a day on Earth.

  1. Mars Facts science.nasa.gov/mars/facts/?print=detailedfacts
    it completes one rotation every 24.6 hours, which is very similar to one day on Earth
    Checked 2026-10-10.

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