Java TimeUnit Usage daysToMillis(int days)

Description

Return Date in milliseconds

License

Apache License

Parameter

Parameter	Description
days	Number of days since unix epoch

Return

Milliseconds representation for date This function has been copied from Apache Hive project.

Declaration

public static long daysToMillis(int days) 

Method Source Code

//package com.java2s;
/*//from w  w w  . j  av  a  2  s .  com
 * Copyright 2017 StreamSets 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.
 */

import java.util.Calendar;

import java.util.TimeZone;
import java.util.concurrent.TimeUnit;

public class Main {
    private static final long MILLIS_PER_DAY = TimeUnit.DAYS.toMillis(1);
    private static TimeZone localTimeZone = Calendar.getInstance().getTimeZone();

    /**
     * Return Date in milliseconds
     * @param days Number of days since unix epoch
     * @return Milliseconds representation for date
     *
     * This function has been copied from Apache Hive project.
     */
    public static long daysToMillis(int days) {
        long millisUtc = (long) days * MILLIS_PER_DAY;
        long tmp = millisUtc - (long) (localTimeZone.getOffset(millisUtc));
        return millisUtc - (long) (localTimeZone.getOffset(tmp));
    }
}

Related

1. dateStart(final Calendar c)
2. daysBetween(Calendar startDate, Calendar endDate)
3. daysBetween(Date initDate, Date endDate)
4. daysBetweenDates(long toDate, long fromDate)
5. daysFromToday(long toDate)
6. durationInSecs(long startNanos, long endNanos)
7. durationIsValid(long seconds, int nanos)
8. durationToString(long duration)
9. durationToString(long millis)