15/09/2026
How Long Is a Year on Each Planet? 🪐
A “year” is the time a planet needs to make one complete trip around the Sun — and the difference across our Solar System is incredible.
Mercury completes an orbit in only 88 Earth days, while Venus takes about 225 days. Earth needs 365 days, and Mars takes roughly 687 days, almost two Earth years.
Farther out, the orbital times become enormous. Jupiter takes about 11.86 Earth years, Saturn about 29.45 years, and Uranus around 84 years to orbit the Sun.
Then there’s Neptune — where one year lasts approximately 164.8 Earth years! Someone born at the start of a Neptunian year would likely never live to celebrate their first birthday there. 🌌
In general, the farther a planet is from the Sun, the larger its orbit and the longer its journey around our star. ☀️🪐