24 hour
A day on Saturn is about 11 hours on Earth.
It should be --- Earth Day, Planet Earth.
This is planet Earth, so one Earth day is one day on this planet.
24.62 Earth days and 686.78 Earth days.
Mercury is the planet with an 88-day year.
Mercury.
16.11 hours.
24 hours
A day is 9.1 hours unlike earth which is 24 hours in a day.
It means the planet rotates slower. To be precise, the angular velocity is less.
It is possible, but not for a long long long long long long long long time.
I`ll assume by a day you mean an Earth day (24 hours). Saturn rather !