public class TimeCalc { /** * 将指定数字转换为时间(格式: 00:00:00,000) * * @param timeNumber 如 216059999 * @return 如 60:00:59,999 */ public static String calc(long timeNumber) { long hUnit = 60 * 60 * 1000; long mUnit = 60 * 1000; long sUnit = 1000; long h = (long) timeNumber / hUnit; long m = (long) (timeNumber % hUnit) / mUnit; long s = (long) ((timeNumber % hUnit) % mUnit) / sUnit; long ms = ((timeNumber % hUnit) % mUnit) % sUnit; String calcResult = String.format( "%02d:%02d:%02d,%03d", h, m, s, ms ); return calcResult; } public static void main(String[] args) { System.out.println(TimeCalc.calc(3599999)); // 00:59:59,999 System.out.println(TimeCalc.calc(216059999)); // 60:00:59,999 System.out.println(TimeCalc.calc(0)); // 00:00:00,000 System.out.println(TimeCalc.calc(360012000)); // 100:00:12,000 } }