A sidereal day equals one planetary rotation.
A single rotation takes the planet Uranus 17 hours and 54 minutes to complete.
If we think in terms of a solar day, how long it takes the Sun to go from high noon to high noon, we get a different picture.
The combined effect of Uranus’s tilted rotation and slow orbit causes the planet’s poles to experience 42-year-long solar days.
The orbital elements for Uranus were first calculated in 1783 by Pierre-Simon Laplace.
The upper upper atmosphere of the planet Uranus experiences very strong winds in the direction of rotation, and at some latitudes, visible features of the atmosphere move much faster than others.