稼働時間 かどうじかん Also written 稼動時間 Meanings Noun hours of operation (of a machine, etc.); uptime Kanji 稼 earn. Read as カ. 働 work. Read as ドウ. 時 time 間 interval. Read as カン. Words containing 稼働時間 全稼働時間 (ぜんかどうじかん) busy period Jinuma: Japanese Dictionary · Word lists