Sylvester started as a beautiful nowhere in 1893 and was first called Isabella Station. When the Brunswick and Albany Railroad came through southwest Georgia, the county seat was Isabella, which is located three miles north of the railroad.
It really is an incredibly long distance -- a lightyear is roughly 6 trillion miles or nearly 10 trillion kilometers. Here's how you calculate it. You start with the speed of light, which is about 186,000 miles per second. Then you multiply that by 3,600 seconds in an hour. Then you multiply that by 24 hours in a day.
From a stationary perspective, the answer is obviously one year. By definition, a light year is the distance light travels in one year. However, as one approaches the speed of light, time slows down for that person. In other words, if you were traveling very close to the speed of light, years would pass in the Universe outside your spaceship while seeming like a much shorter period of time to you.