Light travels 300,000 km per second, or 300 million meters/second. Convert the 2 hours to seconds, then multiply by 300 million.
I think what you are asking is how many hours it takes light to travel 310 light-years. If that is what you meant, then it takes light about 2,717,460 hours to travel 310 light-years. 310 x 365.25 x 24
About 0.3 meters in a vacuum. Divide that by 1.0003 to get the distance in meters per nanosecond through air. Divide by 1.5 for glass.
3
There are 24 hours in a day giving you 168 hours. That works out to be 10,080 kilometers.
80,000 kilo meters
At 1mph, 244 miles will take 244 hours to travel. At 60mph, 244 miles will take 4.0666... hours to travel. At the speed of light, 244 miles will take 1.31 milliseconds to travel.
It takes about 4.3 light hours to travel from Earth to Neptune.
A light year is the distance light will travel in one year, a light minute is the distance light will travel in one minute.The speed of light is 299 792 458 metres per second.In one minute light will travel 60 x 299 792 458 = 17 987 547 480 metres.
How many hours does it take to get to 4.5 billion km
5,000 meters per hour.
1 light year = 9.4605284 × 1015 meters
7.5 light years = 7.0955478544356E+16 meters.