Java Calendar Time normalizeLocalTime(final Calendar cal)

Description

Normalize cal so that any Calendar with the same local time have the same result.

License

Open Source License

Parameter

Parameter	Description
cal	a calendar, e.g. 0:00 CEST.

Return

the time in millisecond of the UTC calendar with the same local time, e.g. 0:00 UTC.

Declaration

public final static long normalizeLocalTime(final Calendar cal) 

Method Source Code

//package com.java2s;
/*//  w  w w.  j  ava 2s  . co m
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 * 
 * Copyright 2011 OpenConcerto, by ILM Informatique. All rights reserved.
 * 
 * The contents of this file are subject to the terms of the GNU General Public License Version 3
 * only ("GPL"). You may not use this file except in compliance with the License. You can obtain a
 * copy of the License at http://www.gnu.org/licenses/gpl-3.0.html See the License for the specific
 * language governing permissions and limitations under the License.
 * 
 * When distributing the software, include this License Header Notice in each file.
 */

import java.util.Calendar;

public class Main {
    /**
     * Normalize <code>cal</code> so that any Calendar with the same local time have the same
     * result. If you don't need a Calendar this is faster than
     * {@link #copyLocalTime(Calendar, Calendar)}.
     * 
     * @param cal a calendar, e.g. 0:00 CEST.
     * @return the time in millisecond of the UTC calendar with the same local time, e.g. 0:00 UTC.
     */
    public final static long normalizeLocalTime(final Calendar cal) {
        return cal.getTimeInMillis() + cal.getTimeZone().getOffset(cal.getTimeInMillis());
    }
}

Related

1. merge(Calendar date, Calendar time)
2. mergeDateAndTime(final Calendar date, final Calendar time)
3. mergeDateTime(Calendar date, Calendar time)
4. newCalendar(final long time)
5. newCalendarInstance(TimeZone timeZone)
6. parseTime(Calendar calendar, String time_string)
7. parseTime(String time, Calendar calendar)
8. removeTime(Calendar c)
9. removeTime(Calendar cal)