It takes approximately 1.28 seconds for light to travel from the Moon to Earth.

Here's how we calculate that:

* Speed of light: Light travels at approximately 299,792,458 meters per second.

* Distance to the Moon: The average distance between the Earth and the Moon is about 384,400 kilometers (238,855 miles).

Calculation:

* Time = Distance / Speed

* Time = 384,400,000 meters / 299,792,458 m/s

* Time ≈ 1.28 seconds