Java TimeUnit Usage daysBetweenDates(long toDate, long fromDate)

Description

number of days between two dates.

License

Open Source License

Parameter

Parameter	Description
toDate	milli-second representation of to-date. By convention, this should be a UTC date for 0:00 AM
fromDate	milli-second representation of from-date. By convention, this should be a UTC date for 0:00 AM

Return

number of days as counted from date to date, and not based on 24 hours of elapsed time time.

Declaration

public static int daysBetweenDates(long toDate, long fromDate) 

Method Source Code

//package com.java2s;
/*/*from www .j  a  va  2s  .  co  m*/
 * Copyright (c) 2016 simplity.org
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

import java.util.concurrent.TimeUnit;

public class Main {
    /**
     * number of days between two dates. time part is ignored from both dates.
     * If you want to consider time as well, then use elapsedDaysBetweenDates()
     *
     * @param toDate
     *            milli-second representation of to-date. By convention, this
     *            should be a UTC date for 0:00 AM
     * @param fromDate
     *            milli-second representation of from-date. By convention, this
     *            should be a UTC date for 0:00 AM
     * @return number of days as counted from date to date, and not based on 24
     *         hours of elapsed time time.
     */
    public static int daysBetweenDates(long toDate, long fromDate) {
        return (int) TimeUnit.DAYS.convert(toDate - fromDate, TimeUnit.MILLISECONDS);
    }
}

Related

1. currentMillisFromNanotime()
2. dateDiff(Date d1, Date d2)
3. dateStart(final Calendar c)
4. daysBetween(Calendar startDate, Calendar endDate)
5. daysBetween(Date initDate, Date endDate)
6. daysFromToday(long toDate)
7. daysToMillis(int days)
8. durationInSecs(long startNanos, long endNanos)
9. durationIsValid(long seconds, int nanos)