Here you can find the source of createISODateTimeFormatter()
public static DateFormat createISODateTimeFormatter()
//package com.java2s; /*// w w w .ja v a2 s .c om * Copyright 2014 Red Hat, Inc. * * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * and Apache License v2.0 which accompanies this distribution. * * The Eclipse Public License is available at * http://www.eclipse.org/legal/epl-v10.html * * The Apache License v2.0 is available at * http://www.opensource.org/licenses/apache2.0.php * * You may elect to redistribute this code under either of these licenses. */ import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.*; public class Main { public static DateFormat createISODateTimeFormatter() { DateFormat dtf = new SimpleDateFormat("EEE, dd MMM yyyy HH:mm:ss zzz", Locale.ENGLISH); dtf.setTimeZone(TimeZone.getTimeZone("UTC")); return dtf; } }