Java TimeZone getDateAtTimeZone(Date when, TimeZone from, TimeZone to)

Description

get Date At Time Zone

License

Apache License

Declaration

public static Date getDateAtTimeZone(Date when, TimeZone from, TimeZone to) 

Method Source Code

//package com.java2s;
/*// w w  w.j  a  va 2s  .  c om
 * Copyright 2012 Andy Boothe
 *
 *   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.util.Calendar;
import java.util.Date;
import java.util.TimeZone;

public class Main {
    public static Date getDateAtTimeZone(Date when, TimeZone from, TimeZone to) {
        Calendar result = Calendar.getInstance();
        result.setTime(when);
        int offset = to.getOffset(when.getTime()) - from.getOffset(when.getTime());
        result.add(Calendar.MILLISECOND, offset);
        return result.getTime();
    }

    public static Date getDateAtTimeZone(Date when, TimeZone tz) {
        return getDateAtTimeZone(when, TimeZone.getDefault(), tz);
    }
}

Related

1. extractTimeZone(String strdate, Date thedate)
2. getDateAttributes(long millisec, TimeZone tz, boolean showNumber)
3. getDateBoxValue(TimeZone zone, Date date)
4. getDateValue(TimeZone zone, Long dateBoxValue, Long timeBoxValue)
5. getDateWithoutTimeZone(Date date)