It takes light from the Sun approximately 2 hours and 40 minutes to reach Uranus.

Here's why:

* Distance: Uranus is about 1.9 billion miles (3 billion kilometers) from the Sun.

* Speed of light: Light travels at a speed of 186,282 miles per second (299,792 kilometers per second).

To calculate the travel time, divide the distance by the speed of light:

* Time = Distance / Speed

* Time = 1.9 billion miles / 186,282 miles per second

* Time ≈ 10,197 seconds

* Time ≈ 2 hours and 40 minutes