import java.time.*;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeFormatterBuilder;
import java.time.temporal.ChronoField;
import java.util.Locale;
import java.util.stream.Stream;
 
public class Main {
    static final DateTimeFormatter fmt = new DateTimeFormatterBuilder()
            .parseDefaulting(ChronoField.OFFSET_SECONDS, 0)
            .appendPattern("uuuuMMddHHmmss[z]")
            .toFormatter(Locale.ENGLISH);
 
    public static void main(String[] args) {
        Stream.of(
                        "20190620121807",
                        "20190620121807America/New_York"
                )
                .map(s -> ZonedDateTime.parse(s, fmt))
                .forEach(System.out::println);
    }
}

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