かどうじかん 稼働時間 LinksSentence search for 稼働時間Sentence search for かどうじかんSentence search for 稼動時間Kanji details for 稼, 働, 時 and 間Edit in JMdict Noun1. hours of operation (of a machine, etc.); uptimeOther forms稼動時間 【かどうじかん】 Discussions Log in to talk about this word.