The planet with the shortest time of orbit around the Sun is Mercury. Mercury takes approximately 88 Earth days to complete one orbit around the Sun. Due to its close proximity to the Sun, Mercury has the shortest orbital period among all the planets in our solar system.
Mercury's proximity to the Sun also means that it has the fastest average orbital speed. It travels at an average speed of about 47.87 kilometers per second (29.78 miles per second) in its orbit around the Sun. The combination of its short orbital period and high speed makes Mercury a unique and dynamic planet in our solar system.