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GMT

American  
Or G.M.T.
  1. Greenwich Mean Time.


GMT British  

abbreviation

  1. Greenwich Mean Time

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

What is GMT? GMT is short for Greenwich Mean Time, an international reference point for time zones. How is GMT pronounced?[ gee-em-tee ]

Compare meaning

How does gmt compare to similar and commonly confused words? Explore the most common comparisons:


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Downdetector, which tracks online outages, showed a sharp decline around 0450 GMT in users' reports of disruptions in Washington and Hong Kong.

From Barron's ● Nov. 13, 2026

He crossed the finish line in Cardiff's Central Square just after 11:00 GMT, and was greeted by a crowd cheering him on before he was met by his husband, Arran Rees.

From BBC ● Nov. 13, 2026

Derbyshire Fire and Rescue Service said it was called to the site in Raynesway shortly after 16:00 GMT on Thursday.

From BBC ● Nov. 12, 2026

West Yorkshire Police said it attended the university on Tuesday evening after being called by its security office and established all of the incidents happened between 18:00 and 18:30 GMT.

From BBC ● Nov. 12, 2026

GMT polezeidom was meant to be a solid wall of oatmeal-thick bureaucracy, courtesy of some crafty, anonymous PDTalist.

From Eastern Standard Tribe by Cory Doctorow

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