The length of a day on Venus is quite different from that on Earth. Venus rotates on its axis very slowly, taking about 243 Earth days to complete one full rotation. This means that a day on Venus (one complete rotation) is approximately 243 Earth days long.
Furthermore, it's interesting to note that Venus rotates in the opposite direction compared to most other planets in our solar system, including Earth. This is known as a retrograde rotation. So, if you were standing on the surface of Venus, the Sun would rise in the west and set in the east due to this retrograde rotation.
It's worth mentioning that the length of a day on Venus is significantly longer than its year, which is the time it takes for Venus to complete one orbit around the Sun. Venus orbits the Sun in approximately 225 Earth days. Hence, Venus experiences a day-night cycle that lasts longer than its year.