English

Definition of uptime noun from the Oxford Advanced Learner's Dictionary

 

uptime

 noun
noun
BrE BrE//ˈʌptaɪm//
 
; NAmE NAmE//ˈʌptaɪm//
 
[uncountable]
 
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the time during which a machine, especially a computer, is working opposite downtime
See the Oxford Advanced American Dictionary entry: uptime