How many Mars days in one earth year?

Answer 1

356. There are about 0.975 Martian days in one Earth Day, and 365.25 Earth days in one Earth year, and 0.975 * 365.25 ≈ 356.009.

Answer 2

687 earth days, it is of note that a martian day is only 41 min longer that an earth day, 24 hrs 37 min and 23 hrs 56 min repsectively.

Answer 3

There are approximately 687 Earth days in one Mars year, also known as a Martian year. This is due to the longer orbital period of Mars around the sun compared to Earth.