Here you can find the source of getCalendarUTC()
private static Calendar getCalendarUTC()
//package com.java2s; /*/*ww w . j a v a2 s.co m*/ * * Copyright 2015 IK4-Tekniker All Rights Reserved * * This file is part of Health Questionnaire SE at FISTAR https://www.fi-star.eu/ * * Health Questionnaire SE is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License as * published by the Free Software Foundation, either version 3 of the * License, or (at your option) any later version. * * Health Questionnaire SE 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 Affero * General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with Health Questionnaire SE. If not, see http://www.gnu.org/licenses/. * * For those usages not covered by this license please contact with * patricia.casla at tekniker dot es * * Author: Ignacio Lazaro Llorente */ import java.util.Calendar; import java.util.Date; import java.util.TimeZone; public class Main { private static Calendar getCalendarUTC() { Calendar c = Calendar.getInstance(); System.out.println("current: " + c.getTime()); TimeZone z = c.getTimeZone(); int offset = z.getRawOffset(); if (z.inDaylightTime(new Date())) { offset = offset + z.getDSTSavings(); } int offsetHrs = offset / 1000 / 60 / 60; int offsetMins = offset / 1000 / 60 % 60; System.out.println("offsetHrs: " + offsetHrs); System.out.println("offsetMins: " + offsetMins); c.add(Calendar.HOUR_OF_DAY, (-offsetHrs)); c.add(Calendar.MINUTE, (-offsetMins)); System.out.println("GMT Time: " + c.getTime()); return c; } }