uptime

noun

up·​time ˈəp-ˌtīm 

: 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

No individual component may appear as dramatic as the driving model, yet the combined system determines uptime, utilization, cost per productive mile and the speed at which a fleet can enter a market. — John Gabriel, Forbes.com, 2 Sep. 2026

The approach could also increase operational uptime and reduce the need for large power systems aboard satellites. — Neetika Walter, Interesting Engineering, 24 Aug. 2026

Word History

First Known Use

1958, in the meaning defined above

Rhymes for uptime

• airtime
• bedtime
• daytime
• downtime
• enzyme
• halftime
• lifetime
• longtime
• lunchtime
• mealtime
• meantime
• nighttime