Central US Time (CST) is a time zone in the United States that is six hours behind Coordinated Universal Time (UTC). It is observed in the central part of the country, including the states of Alabama, Arkansas, Illinois, Iowa, Kansas, Kentucky, Louisiana, Minnesota, Mississippi, Missouri, Nebraska, North Dakota, Oklahoma, South Dakota, Tennessee, Texas, and Wisconsin.
CST is important because it helps to coordinate activities across a large geographic area. For example, businesses in different cities can schedule meetings and events at times that are convenient for everyone involved. CST is also important for transportation, as it helps to ensure that trains and planes arrive and depart on time.