http://en.wikipedia.org/wiki/Table_of_planets_and_dwarf_planets_in_the_Solar_System
Look at the rotation period.
Which planet?
no
Rigel is a star, not a planet, so it does not have a day.
A day on Saturn is about 11 hours on Earth.
one day
24 hour
murcury
Mercury is the planet with an 88-day year.
59 day noy are uahppy
How long it spins on it's axis
A planets day (solar day) is the time it takes to rotate once on its axis relative to the sun, the synodic period. A year on a planet is the time taken for the planet travel once around the sun.
It means the planet rotates slower. To be precise, the angular velocity is less.