This is a visualization imagining you’re a beam of light departing New York City, traveling the circumference of the Earth, and returning to New York City. How long does it take? Well since the speed of light is approximately 300,000km/s and the Earth is about 40,075km in circumference, it takes a scant 0.13 seconds, or just 8 frames in the video. Some relaxing vacation that turned out to be!
Keep going for the video, which has a comparison to the speed of sound (343m/s) at the end, which is nice and chill.