Definition of UTC abbreviation from the Oxford Advanced Learner's Dictionary

 

UTC

 abbreviation
abbreviation
BrE BrE//ˌjuː tiː ˈsiː//
 
; NAmE NAmE//ˌjuː tiː ˈsiː//
 
(also Coordinated Universal Time, Universal Coordinated Time)
 
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the abbreviation for ‘Universal Time Coordinated’ (the time based on atomic clocks, used as the basis for legal time in most countries) compare GMT