Venus is the planet known for having a day longer than its year. A day on Venus, defined as the time it takes for the planet to complete one rotation on its axis, lasts approximately 243 Earth days. In contrast, Venus takes about 225 Earth days to complete one orbit around the sun, making its day longer than a year. Venus rotates very slowly and in the opposite direction of most planets, resulting in a unique pattern of sunrise and sunset. The planet is well-known for its thick atmosphere, primarily composed of carbon dioxide, and its extreme surface temperatures, making it one of the hottest planets in the solar system.