Joda-Time

import org.joda.time.Interval;
import org.joda.time.LocalDateTime;

/**
 * Created by tang.cheng on 2017/5/19.
 */
public class Test {

    public static void main(String[] args) {
        long startTime = LocalDateTime.now().toDate().getTime();
        int millis = 1234567890;
        System.out.println("plus millis:" + millis);
        long endTime = LocalDateTime.now().plusMillis(millis).toDate().getTime();
        System.out.println("startTime:" + startTime + " \nendTime:" + endTime);

        long totalTime = endTime - startTime;
        System.out.println("TotalMillis: " + totalTime);
        long l = totalTime / 60 / 1000;
        System.out.println("Total minutes:" + l + (millis == totalTime ? "没有精度损失" : "有精度损失"));

        Interval interval = new Interval(startTime, endTime);
        long standardMinutes = interval.toDuration().getStandardMinutes();
        System.out.println("Total minutes:" + standardMinutes);
    }
}