central standard time
Noun: 1. A time zone: Central Standard Time (CST) is the standard time observed in a specific geographic region, specifically the 6th time zone west of the Greenwich meridian (0° longitude). It is calculated based on the mean solar time at the 90th meridian west of Greenwich. This time zone is used in parts of North America, primarily the central regions of the United States and Canada, during the period when standard time (as opposed to daylight saving time) is in effect.
Central Standard Time is used to specify the official local time within its defined geographic zone, particularly for scheduling, broadcasting, and legal timekeeping. - Example: The live broadcast will begin at 8:00 PM Central Standard Time. - Example: Chicago operates on Central Standard Time during the winter months.
- Abbreviation: The standard abbreviation is CST. It is often used in written schedules, timestamps, and formal communications.
- The conference call is scheduled for 10:00 AM CST.
- Contrast with CDT: Central Standard Time is distinct from Central Daylight Time (CDT), which is one hour ahead and used during the summer months in most areas that observe CST.
- When it is 2:00 PM CST, it is 3:00 PM CDT.
- Central Daylight Time (CDT) (noun): The time observed in the Central Time Zone during daylight saving time, which is one hour ahead of Central Standard Time (CST = UTC-6, CDT = UTC-5).
- Central Time (CT) (noun): A general term referring to the time zone, encompassing both Central Standard Time (CST) and Central Daylight Time (CDT).
- Time Zone (noun): A region of the globe that observes a uniform standard time for legal, commercial, and social purposes.
- CST: The direct abbreviation.
- Central Time (CT): A more general synonym, though it can be ambiguous without specifying "Standard" or "Daylight."
- Observe Central Standard Time: To officially use CST as the local time.
- The state of Nebraska observes Central Standard Time.
- Convert to Central Standard Time: To calculate the equivalent time in CST from another time zone.
- Remember to convert the meeting time from Pacific Time to Central Standard Time.
- standard time in the 6th time zone west of Greenwich, reckoned at the 90th meridian; used in the central United States