Java TimeZone getLocalTime( java.util.TimeZone localTimeZone, java.util.Date timestamp, java.util.TimeZone sourceTimeZone)

Description

get Local Time

License

Apache License

Declaration

private static java.util.Date getLocalTime(
            java.util.TimeZone localTimeZone, java.util.Date timestamp,
            java.util.TimeZone sourceTimeZone) 

Method Source Code

//package com.java2s;
/**//from ww  w.  ja v a 2s. co  m
 * Copyright 2015 Jan Lolling jan.lolling@gmail.com
 * 
 * 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.
 */

public class Main {
    private static java.util.Date getLocalTime(
            java.util.TimeZone localTimeZone, java.util.Date timestamp,
            java.util.TimeZone sourceTimeZone) {
        if (timestamp != null) {
            if (localTimeZone == null) {
                throw new IllegalArgumentException(
                        "localTimeZone cannot be null");
            }
            if (sourceTimeZone == null) {
                throw new IllegalArgumentException(
                        "sourceTimeZone cannot be null");
            }
            java.util.Calendar c = java.util.Calendar.getInstance();
            //c.setTimeZone(sourceTimeZone);
            c.clear();
            c.setTimeInMillis(timestamp.getTime());
            // adapt the local time zone
            int offset = localTimeZone.getOffset(timestamp.getTime());
            offset = offset - sourceTimeZone.getOffset(timestamp.getTime());
            int offsetHrs = offset / 1000 / 60 / 60;
            int offsetMins = offset / 1000 / 60 % 60;
            c.add(java.util.Calendar.HOUR_OF_DAY, (offsetHrs));
            c.add(java.util.Calendar.MINUTE, (offsetMins));
            return c.getTime();
        } else {
            return null;
        }
    }
}

Related

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2. getDateBoxValue(TimeZone zone, Date date)
3. getDateValue(TimeZone zone, Long dateBoxValue, Long timeBoxValue)
4. getDateWithoutTimeZone(Date date)
5. getExcelSerialDayNumber(Date date, Locale locale, TimeZone timeZone)
6. getTimezoneDate(String stateCode)
7. getTimeZoneOffset(Date d)
8. getTimezoneOffsetInHours(Date date)
9. hasTimeComponent(Date date, TimeZone timeZone)