A light year is a unit for length that is used for very great distances. This is approximately equal to 9.4607 x 10^12 km. Multiplying this distance to 4.37 will give us an answer of 4.134 x 10^13 km. Dividing this by the speed of light, 3 x 10^8 m/s will give us an answer of,
137810863.3 s
Also equal to 4.37 years.