The speed of light is not dependent on how long time it travels.
299,792,458 meters/second
186,282.4 miles per second.
Light travels at the rate of about 300,000 km a second.
At the speed of light, which is 299,792,458 metres per second.
300000 km/second
The speed of light in water is about 225,400 kilometres per second.
983,571,056.43045 feet/second in a vacuum.
At approx 300,000 km per second.
it travels at about 128,609 miles per second!
the speed of light 186,300 miles per second
Radio waves travel at the speed of light 300 Million meters/second, 300e6 meters/second
Exactly 299,792.548 meters per second.