uptime

noun

up·​time ˈəp-ˌtīm How to pronounce uptime (audio)
: 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.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Eaton, on the other hand, makes power management systems and components that enable data centers to run more efficiently, with greater uptimes and scalability. Zev Fima, CNBC, 13 Oct. 2025 All three panel speakers, and their companies, are focused on ensuring the most uptime possible for their network users. Eileen Falkenberg-Hull, MSNBC Newsweek, 1 Oct. 2025 That experience fuels a commitment to adapt, solve unique challenges, and protect uptime, reputation, and safety. Matt Emma, USA Today, 29 Sep. 2025 Aepnus’s strategy is to sell pilot systems, prove uptime, and then support either local manufacturing or build-operate models, aiming to de-risk that transition. Kapil Kajal, Interesting Engineering, 23 Sep. 2025 See All Example Sentences for uptime

Word History

First Known Use

1958, in the meaning defined above

Time Traveler
The first known use of uptime was in 1958

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Cite this Entry

“Uptime.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/uptime. Accessed 18 Oct. 2025.

Last Updated: - Updated example sentences
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