Time zone: CST - Central Standard Time. Current time zone offset: UTC/GMT -6. DST started on 12 March 2017 and ended on 05 November 2017. Sunrise: 7:11 am. Sunset: 5:13 pm. USA country code is +1 and St. Louis area code is 314. St. Louis is located in CST - Central Standard Time zone and currently does not observe Daylight Saving Time. The sunrise was at 7:11 AM and the sunset will be at 5:13 PM. The main airport in St. Louis is Lambert-St. Louis International Airport (STL) which is around 10 miles (16 km) northwest of St. Louis. Other Cities Located in CST - Central Standard Time Zone: Altona Arborg Beausejour Benito