四六時中 しろくじちゅう Meanings Adverb, Noun around the clock; day and night (because 4 x 6 = 24) Kanji 四 four. Read as シ. 六 six. Read as ロク. 時 time 中 middle. Read as チュウ. Word lists Yojijukugo (四字熟語) Jinuma: Japanese Dictionary · Word lists