CST (Central Standard Time) is one of the well-known names of UTC-6 time zone which is 6h. behind of UTC (Coordinated Universal Time).The time offset from UTC can be written as -06:00.
It's used during the winter. During the summer CDT - Central Daylight Time (UTC-5) is in use.
Some locations use CST all year long.
Time difference to GMT/UTC
Other Time Zones which are named CST
Iana Timezones where CST is currently observed