Here's why:

* Rotation Speed: A planet's rotation speed determines how quickly it spins on its axis. The faster the rotation, the quicker a complete rotation (a day) is completed.

* Day Length: A shorter rotation period means a shorter day.

* Sunrise to Sunset: The time between sunrise and sunset is essentially half of a day. So, the faster the rotation, the shorter the time between sunrise and sunset.

While it varies depending on the time of year and latitude, Jupiter has the fastest rotation speed of all the planets in our solar system. It completes a rotation in just under 10 hours. This means that the time between sunrise and sunset on Jupiter is incredibly short!