Which planet in the solar system has the shortest day?
Answer Jupiter
As the planets orbit the sun, they also each rotate at their own speeds, which establishes the length of a day. While Jupiter only takes 10 hours to complete a single rotation, Venus takes a whopping 5,832 hours, which is the equivalent of 243 of Earth's days.
Asked by Don Ayres · Last updated 5 years ago · 36.5K views · SOURCE