243 Earth days.
1 day
1 day
1 day or 24 hours
It takes 24 hours to turn its axis.
No , it takes 59 Earth days for Mercury for one rotation on its axis.
Venus does not rotate like most other planets. It rotates very slowly in the opposite direction to its orbit around the Sun, making a day on Venus longer than a year. This is known as a retrograde rotation.
Luna, Earth's Moon takes one month to turn once on its axis. That is why we use the word, "Month" (from the very old word, "Moonth") to describe that period of time.
it takes aproximently 14.5 billion years. Boo you Justin Bieber!>:(
Mercury takes 59 days to rotate, and 88 days to orbit the Sun.
Mercury
A year on Venus is how long it takes for the planet to fully orbit the sun once. A day is how long it takes the planet to completely rotate once, ie, turn all the way around. Venus rotates very slowly, and by the time it has turned one full circle, the planet has already gone all the way around the sun.
Each of them does.