Java Timezone Calculate arrival time of a flight that leaves from San Francisco and arrives in Tokyo - Java Date Time

Java examples for Date Time:Time Zone

  1. HOME
  2. Java
  3. Date Time
  4. Time Zone

Description

Java Timezone Calculate arrival time of a flight that leaves from San Francisco and arrives in Tokyo

Demo Code

import java.io.PrintStream;
import java.time.LocalDateTime;
import java.time.ZonedDateTime;
import java.time.Month;
import java.time.ZoneId;
import java.time.temporal.ChronoUnit;
import java.time.DateTimeException;
import java.time.format.DateTimeFormatter;

/*/*  w ww .  ja  va2  s  .c  o m*/
 * This example uses ZonedDateTime to calculate the arrival time of
 * a flight that leaves from San Francisco and arrives in Tokyo.
 * The flight is 10 hours, 50 minutes long. Formatters are used to
 * print the departure and arrival times.
 */

public class Flight {
    public static void main(String[] args) {
        DateTimeFormatter format = DateTimeFormatter
                .ofPattern("MMM d yyyy  hh:mm a");

        // Leaving from San Francisco on July 20, 2013, at 7:30 p.m.
        LocalDateTime leaving = LocalDateTime.of(2013, Month.JULY, 20, 19,
                30);
        ZoneId leavingZone = ZoneId.of("America/Los_Angeles");
        ZonedDateTime departure = ZonedDateTime.of(leaving, leavingZone);

        try {
            String out1 = departure.format(format);
            System.out.printf("LEAVING:  %s (%s)%n", out1, leavingZone);
        } catch (DateTimeException exc) {
            System.out.printf("%s can't be formatted!%n", departure);
            throw exc;
        }

        // Flight is 10 hours and 50 minutes, or 650 minutes
        ZoneId arrivingZone = ZoneId.of("Asia/Tokyo");
        ZonedDateTime arrival = departure.withZoneSameInstant(arrivingZone)
                .plusMinutes(650);

        try {
            String out2 = arrival.format(format);
            System.out.printf("ARRIVING: %s (%s)%n", out2, arrivingZone);
        } catch (DateTimeException exc) {
            System.out.printf("%s can't be formatted!%n", arrival);
            throw exc;
        }

        if (arrivingZone.getRules().isDaylightSavings(arrival.toInstant()))
            System.out.printf(
                    "  (%s daylight saving time will be in effect.)%n",
                    arrivingZone);
        else
            System.out.printf("  (%s standard time will be in effect.)%n",
                    arrivingZone);
    }
}

/*
 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   - Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *
 *   - Neither the name of Oracle or the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

Related Tutorials