Here you can find the source of GetHTTPDateFormater()
public static DateFormat GetHTTPDateFormater()
//package com.java2s; /*/*from w w w .ja v a2 s. c om*/ The MIT License (MIT) PokerFace: Asynchronous, streaming, HTTP/1.1, scriptable, reverse proxy. Copyright (c) 2015 Frank Stock Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ import java.text.DateFormat; import java.text.SimpleDateFormat; import java.util.TimeZone; public class Main { /** * Format used for HTTP date headers. */ public static final String HTTP_DATE_FORMAT = "EEE, dd MMM yyyy HH:mm:ss zzz"; /** * Convenient lookup for the GMT time zone. */ private static final TimeZone GMT_TZ = TimeZone.getTimeZone("GMT"); /** * Get a new date formatter compatible with HTTP headers protocol. * SPECIFICALLY... This means: * The parser will parse GMT and return local time. * The formatter will take a local time and output a GMT string. */ public static DateFormat GetHTTPDateFormater() { SimpleDateFormat f = new SimpleDateFormat(HTTP_DATE_FORMAT); f.setTimeZone(GMT_TZ); return f; } }