This question was deemed null by Copernicus's Heliocentric theory, whereby stating that the sun is the center of our solar system. Thus, we cannot measure the length of a year of the sun, because the sun does not rotate around the Earth, which is the definition of a "year." One can, however, measure how long a "day" on the sun lasts by measuring its rotational velocity.
(THE SUN DOESN'T HAVE A YEAR BECAUSE IT DOESN'T ORBIT ANYTHING!!!)
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A year on Mars is equal to 687 Earth days. That is about 2 Earth years.
0.2408 of an Earth year.
It takes Mars about 687 Earth days to have a full year, compared to the Earth's 365 days in a year. A year on Mars is 1.88 Earth years.
One year on Jupiter takes about 11.8 Earth years, as Jupiter has a much longer orbit around the Sun compared to Earth.
The year on the planet Mercury is very short. A year on this planet lasts 88 days compared to 365 days on Earth.
If you are speaking of one orbit around the sun, about 2 earth years. If you are using Earth's calendar, one year is one year. (note it's rotation on it's axis is a little more than one Earth day - 24.6 hours) on mars there is only a little time difference if compared to the earth if on earth 7:00AM than on mars it will be 7:10AM!!
Uranus's year is approximately 456.445 Earth years.
1 year
The dwarf planet Pluto is the planet with a year 248 earth years long.
The dwarf planet Haumea is the planet with a year 280 earth years long.
The dwarf planet Makemake is the planet with a year 310 earth years long.