Question

What is the time taken by the sunlight to reach the earth surface?

Answer 1

Photons emitted from the surface of the Sun need to travel across the vacuum of space to reach our eyes. The short answer is that it takes sunlight an average of 8 minutes and 20 seconds to travel from the Sun to the Earth.

Answer 2

the time taken for sunlight to reach earth is approximately equal to 8 minutes

we are 149.6 million km away from sun.
speed of light is 3×10^8 m/s
149.6 million km divided by speed of light is around 8 minutes and 20 sec