Pluto.
Saturn takes 29.66 years to orbit the sun.
URANUSUranus
IN our solar system, the planet Neptune takes the longest. Or, if you want to include Pluto, Pluto. Or, if you want to include ALL of the "dwarf planets", then Eris (a.k.a. "Xena") takes the longest.
Neptune (the eighth and outermost planet) was discovered on September 23, 1846. It takes 164.79 Earth years to complete one orbit and will therefore only complete its first orbit since its discovery in 2011. It is also worth noting that while Pluto is not longer regarded as a planet (it is now a minor planet) it was discovered in 1930 and takes 248.09 Earth years to complete an orbit.
Mars.
the planet takes almost 2 earth years to orbit the sun is Jupiter
The planet Mars, which is the fourth planet from the sun, takes 1.88 Earth years to make one full orbit around the sun.
Neptune
The dwarf Planet Pluto
Uranus
The planet with the nearest orbital time is Uranus. That takes about 84 Earth years.
Neptune's orbit takes 125 years to get around the sun.
Saturn takes 29.66 years to orbit the sun.
Neptune takes 164.79 Earth years to orbit the sun once.
No planet, under the 2006 IAU definition of a planet, takes 557 Earth years to orbit the Sun. Perhaps you are talking about dwarf planets. If so, please restate the question.
Pluto takes 248.09 Earth years to orbit the Sun once. However, please note that Pluto is no longer classified as a planet (like Earth, Mars, Jupiter etc.), it is now a 'dwarf planet'.
It takes about 11.86 years for the planet Jupiter to orbit the sun. That is equivalent to about 4,332 earth days.