there are 18 hours of light in shara
Death Valley receives an average of about 4,019 hours of sunlight per year, making it one of the sunniest places in the United States.
Light-hours?
The hours of day light ranges from 8 hours (midwinter) to 16 hours (midsummer) in vienna.
12 hours
12 hours
6 hours
Edison's best light bulb stayed lit for around 40 hours. This experiment took place in 1879.
5.5 light hours is about 40 astronomical units (AU)
12 hours
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
5
336