It is the objects orbital period.
For the Earth, it takes 365 days to revolve around the Sun.
A year is defined as the time it takes an object to revolve once around the Sun
In this case the word is "revolve". "Rotate" is used for an object that turns around an axis within itself. Saturn takes about 29.5 years to revolve once around the Sun.
It depends how far it is from the sun. Like it takes Venus 225 (earth) days to revolve around the sun and it takes earth 365.25 days because earth is farther from the sun.
It takes 4 years for th earth to revolve around the sun.
Neptune takes the longest to revolve around the sun.
The time it takes for the Earth to revolve around the Sun is called a "year."
it takes 365.25 days for the earth to go around the sun
Neptune takes 164.79 Earth years to revolve around the sun.
it takes saturn longer to revolve around the sun
It takes Saturn 29.45 years (or 10759 days) to orbit, or revolve around, the Sun once. It takes about 29.5 Earth years for the planet Saturn to revolve once around the sun. 10,579 earth days
it takes 365 day to revolve around the sun