noun🔗Share二十四小时制，24小时时制 A timekeeping convention in which the 24 hours of the day are treated as a single period, rather than two sets of 12 hours."The train schedule uses the 24-hour clock, so 3:00 PM is shown as 15:00. "火车时刻表采用二十四小时制，所以下午三点显示为15:00。timesystemnumberChat with AIVocabulary GamePractice Reading
