noun
operating hours; uptime
Refers to the total time a machine, system, or equipment is in operation. Common in industrial, IT, and business contexts.
この工場の機械の稼働時間は1日16時間です。
The operating hours of the machines in this factory are 16 hours a day.
サーバーの稼働時間を99.9%に保つことが目標です。
Our goal is to maintain the server uptime at 99.9%.
Compound of 稼働 (operation) and 時間 (time). 稼働 is itself a compound of 稼 (earning, working) and 働 (work).