How long does it take Neptune to orbit the sun?

Answer 1

The orbital period for Neptune is roughly 60,190 days or about 165 Earth years (164.79 Earth years).
Neptune takes 60,190 earth days or 164.79 earth years to complete one rotation around the sun.

Answer 2

Never.

The sun does not orbit Neptune.

Neptune orbits the sun every 165 Earth years (60,190 days).

Answer 3

165 years. The word is not "spin", but "revolve". Spin refers to a movement around its own axis.