It takes approximately 8 minutes and 20 seconds for a ray of light to travel from the Sun to the Earth.

Here's why:

* Speed of Light: Light travels at a constant speed of approximately 299,792,458 meters per second (186,282 miles per second) in a vacuum.

* Distance from Sun to Earth: The average distance between the Sun and Earth is about 149.6 million kilometers (93 million miles).

* Calculation: Divide the distance by the speed of light to find the time it takes:

Time = Distance / Speed

Time = 149.6 million km / 299,792,458 m/s

Time ≈ 500 seconds ≈ 8 minutes 20 seconds