Definition of uptime
: time during which a piece of equipment (such as a computer) is functioning or able to function
Examples of uptime in a Sentence
We need to maximize network uptime.
First Known Use of uptime
UPTIME Defined for English Language Learners
Definition of uptime for English Language Learners
: time during which a computer or machine is working
Learn More about uptime
Seen and Heard
What made you want to look up uptime? Please tell us where you read or heard it (including the quote, if possible).