Central Standard Time does not change between summer time and winter time.
The IANA time zone identifiers for Central Standard Time are America/Bahia_Banderas, America/Belize, America/Chihuahua, America/Costa_Rica, America/El_Salvador, America/Guatemala, America/Managua, America/Merida, America/Mexico_City, America/Monterrey, America/Regina, America/Swift_Current と America/Tegucigalpa.