How Fast Is Venus
It is a fact that a day on Venus lasts longer than a year on Venus. How can this be? Because Venus turns so slowly that it takes 243 days (earthdays) to spin around its own axis. But it takes only 225 days to make one complete orbit around the sun.
A day is defined as the time of rotation it takes for a planet to spin around its own axis and a year is defined as the time it takes for this planet to get around the sun. Every planet has its own time for this and only the earth has 365 days in one year.