Java Calendar Millisecond getMilliSinceMidnight(Calendar arg)

Description

gets the number of milliseconds since Midnight of the current day (UTC) of the argument

License

Open Source License

Parameter

Parameter	Description
arg	a calendar

Return

the number of milliseconds since Midnight of the current day (UTC) of the argument

Declaration

public static int getMilliSinceMidnight(Calendar arg) 

Method Source Code

//package com.java2s;
/*/*  ww w  . ja  v  a 2 s. c  om*/
 * @(#)TimeUtils.java   0.51 1999/07/14
 *
 * Copyright (c) 2004, Pat Farrell, All rights reserved.
 * based on work Copyright (c) 2000, OneBigCD, Inc.  All rights reserved.
 * Copyright (C) 2011 Patrick Farrell   All Rights reserved.
 * 
 * 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. * 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.
 * 
 * It is abstract because all functions are static
 */

import java.util.Calendar;
import java.util.Date;

import java.util.GregorianCalendar;

import java.util.TimeZone;

public class Main {
    /** constant for UTC */
    public static final TimeZone utcTZ = TimeZone.getTimeZone("UTC");

    /**
     * gets the number of milliseconds since Midnight of the current day (UTC) of the argument
     * @param arg a date
     * @return the number of milliseconds since Midnight of the current day (UTC) of the argument
     */
    public static int getMilliSinceMidnight(Date arg) {
        Calendar cal = GregorianCalendar.getInstance(utcTZ);
        cal.setTime(arg);
        return getMilliSinceMidnight(cal);
    }

    /**
     * gets the number of milliseconds since Midnight of the current day (UTC) of the argument
     * @param arg a calendar
     * @return the number of milliseconds since Midnight of the current day (UTC) of the argument
     */
    public static int getMilliSinceMidnight(Calendar arg) {
        int millis = arg.get(Calendar.HOUR_OF_DAY) * 60 * 60 * 1000;
        millis = millis + arg.get(Calendar.MINUTE) * 60 * 1000;
        millis = millis + arg.get(Calendar.SECOND) * 1000;
        millis = millis + arg.get(Calendar.MILLISECOND);
        return millis;
    }
}

Related

1. elapsedMillis(Calendar before, Calendar after)
2. getCalendarXDaysFromY(long startTimeInMillis, int daysFromStartDate)
3. getDateMilliseconds(Calendar pDate)
4. getLastMilli(Calendar cal)
5. getMillisecond(Calendar calendar)
6. hasZeroMilliSeconds(Calendar cal)
7. newCalendar(long timeInMillis)
8. setCalendar(Calendar calendar, int wholeDays, int millisecondsInDay, boolean use1904windowing)
9. setCalendar(Calendar calendar, int wholeDays, int millisecondsInDay, boolean use1904windowing, boolean roundSeconds)