Van Horn is a town in and the county seat of Culberson County, Texas, United States. According to the 2020 census, Van Horn had a population of 1,941, down from 2,063 in the 2010 census and 2,435 at the 2000 census. Van Horn's official newspaper is The Van Horn Advocate. The town is the westernmost incorporated community in the United States that uses the Central Time Zone, located at the same longitude as Cheyenne, Wyoming, and Colorado Springs, Colorado. Its earliest sunset in the beginning of December is the latest among incorporated towns in the United States, occurring no earlier than 5:56 pm.