Here you can find the source of calcDate(long millisecs)
public static String calcDate(long millisecs)
//package com.java2s; /*/*w w w. j a va2 s . c om*/ * Copyright (C) 2014 desrever <desrever at nubits.com> * * 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 2 * 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, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ import java.text.SimpleDateFormat; import java.util.Date; import java.util.TimeZone; public class Main { public static String calcDate(long millisecs) { String timezone = "UTC"; SimpleDateFormat date_format = new SimpleDateFormat("MMM dd yyyy HH:mm:ss.SSS"); date_format.setTimeZone(TimeZone.getTimeZone("timezone")); Date resultdate = new Date(millisecs); return date_format.format(resultdate) + " " + timezone; } }