Here you can find the source of formatRfc3339Calendar(Calendar cal)
public static String formatRfc3339Calendar(Calendar cal)
//package com.java2s; /*/*from w w w . j a v a 2 s. c o m*/ * Copyright 2006 Open Source Applications Foundation * * Licensed under the Apache 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://www.apache.org/licenses/LICENSE-2.0 * * 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.SimpleDateFormat; import java.util.Calendar; import java.util.Date; import java.util.TimeZone; public class Main { private static final String RFC3339_DATE_FORMAT = "yyyy-MM-dd'T'HH:mm:ssz"; /** */ public static String formatRfc3339Calendar(Calendar cal) { return formatRfc3339Date(cal.getTime(), cal.getTimeZone()); } /** */ public static String formatRfc3339Date(Date date) { return formatRfc3339Date(date, null); } /** */ public static String formatRfc3339Date(Date date, TimeZone tz) { String raw = formatDate(RFC3339_DATE_FORMAT, date, tz); return raw.replaceFirst("GMT", ""); } /** */ public static String formatDate(String pattern, Date date) { return formatDate(pattern, date, null); } /** */ public static String formatDate(String pattern, Date date, TimeZone tz) { SimpleDateFormat formatter = new SimpleDateFormat(pattern); if (tz != null) formatter.setTimeZone(tz); return formatter.format(date); } }