Here you can find the source of getTimeDifferenceInSeconds(Date d, Date d2)
public static double getTimeDifferenceInSeconds(Date d, Date d2)
//package com.java2s; /*//from www .ja va 2s. c om * Copyright (c) 2014 Brockmann Consult GmbH (info@brockmann-consult.de) * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 3 of the License, or (at your option) * any later version. * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, see http://www.gnu.org/licenses/ */ import java.util.*; public class Main { public static double getTimeDifferenceInSeconds(Date d, Date d2) { return Math.abs(d.getTime() - d2.getTime()) / 1000.0; } }