How long is a day on Uranus?

A day on the planet Uranus is 17 hours, 14 minutes and 24 seconds long, according to About.com. One year is equivalent to 84.3 Earth years. Uranus is the seventh planet from the sun and is located 1.79 billion miles from it.

Uranus is a large planet, about 63 times the size of Earth. Visible from Earth, Uranus was not identified as a planet until 1781 by Sir William Herschel. According to NASA, Uranus is an "ice giant" with an atmosphere comprised mostly of hydrogen and helium. It rotates from east to west on its side, with a horizontal spin.