Here you can find the source of getDefaultTimeZone()
static final TimeZone getDefaultTimeZone()
//package com.java2s; /*//from w ww . j a v a 2 s .c o m Copyright (C) 2002-2007 MySQL AB This program is free software; you can redistribute it and/or modify it under the terms of version 2 of the GNU General Public License as published by the Free Software Foundation. There are special exceptions to the terms and conditions of the GPL as it is applied to this software. View the full text of the exception in file EXCEPTIONS-CONNECTOR-J in the directory of this software distribution. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ import java.util.TimeZone; public class Main { private static final TimeZone DEFAULT_TIMEZONE = TimeZone.getDefault(); static final TimeZone getDefaultTimeZone() { return (TimeZone) DEFAULT_TIMEZONE.clone(); } }