Java TimeZone Usage computeTimeZoneOffsetInHours(TimeZone timeZone, long currentDatetime)

Description

Computes the offset in hours for a given timezone at a given date/time.

License

Apache License

Parameter

Parameter	Description
timeZone	the timezone
currentDatetime	the date/time

Return

the offset, in hours

Declaration

public static int computeTimeZoneOffsetInHours(TimeZone timeZone,
        long currentDatetime) 

Method Source Code

//package com.java2s;
/*/*from   w  w  w . j  av a  2  s .c  o  m*/
 * Copyright 2007 Yusuke Yamamoto
 *
 * 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.TimeZone;

public class Main {
    /**
     * Computes the offset in hours for a given timezone at a given date/time.
     * @param timeZone the timezone 
     * @param currentDatetime the date/time 
     * @return the offset, in hours
     */
    public static int computeTimeZoneOffsetInHours(TimeZone timeZone,
            long currentDatetime) {
        int offsetInMilliseconds = timeZone.getOffset(currentDatetime);
        return offsetInMilliseconds / (1000 * 60 * 60);
    }
}

Related

1. addGmtOffset(long millis)
2. assertTimeZoneNotNull(String methodName, TimeZone timeZone)
3. buildTimezone(int hours, int minutes)
4. createPostgresTimeZone()
5. createTaiTimeZone(int leapSecs)
6. datePlusDays(Date date, int days)
7. findTimeZoneInDate(String date)