Time between two dates in Java

package com.company;

import org.joda.time.DateTime;
import org.joda.time.Days;

import java.util.Date;

/**
 * Created by admin on 4/26/17.
 */
public class Dates {

    public static void main(String[] args) {

        Date dateConsigned = new Date(1488499200000l);
        System.out.println(dateConsigned);

        Date now = new Date();

        // Math method - how many Milliseconds between dates?

        long delta = now.getTime() - dateConsigned.getTime();
        long msInDay = 1000 * 60 * 60 * 24;
        long days = delta / msInDay;

        // This ignores any partial days. 
        System.out.println("The number of days difference is " + days);


        // Use Joda-time object
        // Joda-time is useful if you end up doing a lot of date and time manipulations. 
        // Add Joda-time through Maven https://mvnrepository.com/artifact/joda-time/joda-time/2.9.9 
        // Joda-time counts partial days when computing the difference. 
        
        DateTime start = new DateTime(dateConsigned);
        DateTime end = new DateTime(now);

        int daysDifference = Days.daysBetween(start.toLocalDate(), end.toLocalDate()).getDays();
        System.out.println(daysDifference);
        
    }
}