import java.time.*;
import java.time.format.DateTimeFormatter;
import java.util.List;
import java.util.Locale;
import java.util.stream.IntStream;
 
class Main {
    public static void main(String[] args) {
        ZonedDateTime depart = ZonedDateTime.of(LocalDateTime.of(2015, 7, 15, 17, 35), ZoneId.of("America/Chicago"));
        ZonedDateTime arrive = ZonedDateTime.of(LocalDateTime.of(2015, 7, 16, 9, 50), ZoneId.of("Europe/Berlin"));
        Duration duration = Duration.between(depart, arrive);
        System.out.println("Depart: " + depart);
        System.out.println("Arrive: " + arrive);
        System.out.printf("Flight duration: %d hours %d minutes%n", duration.toHoursPart(), duration.toMinutesPart());
 
        // A example of a custom format
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("EEE MMM dd HH:mm:ss z uuuu", Locale.ENGLISH);
        System.out.println(depart.format(formatter));
    }
}

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