Java ZonedDateTime Calculate computeDays(ZonedDateTime Start, ZonedDateTime End)

Description

Comput ethe number of days using th emidnight rule, i.e., from 23:59 Monday night to 00:01 Tuesday morning, that counts as one day.

License

Apache License

Parameter

Parameter	Description
Start	a parameter
End	a parameter

Declaration

public static int computeDays(ZonedDateTime Start, ZonedDateTime End) 

Method Source Code

//package com.java2s;
/* ===========================================================================
 * Copyright (C) 2015 CapsicoHealth Inc.
 *
 * 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./*ww  w  .j av a 2  s.com*/
 */

import java.time.ZonedDateTime;

import java.time.temporal.ChronoUnit;

public class Main {
    /**
     * Comput ethe number of days using th emidnight rule, i.e., from 23:59 Monday night to 00:01 Tuesday morning, that 
     * counts as one day.
     * @param Start
     * @param End
     * @return
     */
    public static int computeDays(ZonedDateTime Start, ZonedDateTime End) {
        int days = (int) ChronoUnit.DAYS.between(Start, End);
        if (secondsSinceMidnight(Start) > secondsSinceMidnight(End))
            ++days;
        return days;
    }

    private static int secondsSinceMidnight(ZonedDateTime ZDT) {
        //        LOG.debug("hour: "+ZDT.getHour()+"; minute: "+ZDT.getMinute()+"; second: "+ZDT.getSecond()+";");
        return ZDT.getHour() * 60 * 60 + ZDT.getMinute() * 60 + ZDT.getSecond();
    }
}

Related

1. addRandomDeltaMinutes(ZonedDateTime ZDT, int minMinutes, int maxMinutes)
2. asZonedDateTime(Date date)
3. calculateTimeForSunrise(ZonedDateTime from, ZonedDateTime to)
4. canonicalTimeString(ZonedDateTime time)
5. cloneZonedDateTime(ZonedDateTime zonedDateTime)
6. convertDateToZonedDateTime(Date date, String timezone)
7. convertForPersistence(@Nullable ZonedDateTime dt)
8. currentZonedDateTime()
9. difference(ZonedDateTime t1, ZonedDateTime t2)