CST

C3S1T1

A form of Central Standard Time — The time of day in the time zone that encompasses the majority of the Midwest and the southern United States, as well as Manitoba, the western third of northern Ontario and the majority of the central third of Nunavut in Canada from the first Sunday of November to the second Sunday of March.

Similar
Central TimeCentral Standard Time
Opposite
AST
CommonScrabble 5
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Meanings

proper noun
  1. abbreviationinitialismInitialism of Central Standard Time.

    For example, triskaidekaphobes like to point out the fate of the 1970 Apollo 13 lunar mission, blaming its near-disastrous outcome on its number and the time it launched, 13:13 CST.

    2017 October 12, Albert Garcia, “What is the word for fear of the number 13? Triskaidekaphobia”, in Calliope Magazine, page 3
  2. abbreviationinitialismInitialism of China Standard Time.
  3. abbreviationinitialismInitialism of Community Security Trust.
nounCST (countable and uncountable, plural CSTs)

plural CSTs

  1. abbreviationcountableinitialismuncountablecomputingInitialism of concrete syntax tree.
  2. abbreviationcountableinitialismuncountablemedicineInitialism of convulsive shock treatment.
  3. abbreviationcountableuncountableAbbreviation of constable.
  4. abbreviationcountableinitialismuncountablepostnominal qualificationInitialism of certified sex therapist.

Synonyms & antonyms

nounstandard time in the 6th time zone west of Greenwich, reckoned at the 90th meridian; used in the central United States

Similar
Central TimeCentral Standard Time
Broader
civil timestandard timelocal time
Also see
central standard timecentral time

Synonym sets from Open English WordNet, CC BY 4.0.

Rhymes & wordplay

Anagrams

STC
Cite this entry
APA

CST. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/CST

MLA

“CST.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/CST. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “CST,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/CST.

Source: CST on Wiktionary, CC BY-SA 4.0.