Here you can find the source of getGMTime()
public static String getGMTime()
//package com.java2s; /**// w w w . j ava 2 s. c o m * Copyright (c) 2003 The Apereo Foundation * * Licensed under the Educational Community License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://opensource.org/licenses/ecl2 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.Calendar; import java.util.TimeZone; public class Main { public static String getGMTime() { // calculate function2 data SimpleDateFormat dform = ((SimpleDateFormat) DateFormat .getDateInstance()); dform.applyPattern("yyyyMMddHH"); dform.setTimeZone(TimeZone.getTimeZone("GMT")); Calendar cal = Calendar.getInstance(TimeZone.getTimeZone("GMT")); String gmtime = dform.format(cal.getTime()); gmtime += Integer.toString(((int) Math.floor((double) cal .get(Calendar.MINUTE) / 10))); return gmtime; } }