import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.time.format.DateTimeFormatterBuilder;
import java.time.temporal.ChronoField;
import java.util.Locale;

public class Main {
    public static void main(String[] args) {
        DateTimeFormatter dtf = new DateTimeFormatterBuilder()
        						.appendPattern("u-M-d[ H]")
                                .parseDefaulting(ChronoField.HOUR_OF_DAY, 0)                                
                                .toFormatter(Locale.ENGLISH)
                                .withZone(ZoneId.systemDefault());
                                

        ZonedDateTime zdt = ZonedDateTime.parse("1994-03-24", dtf);
        System.out.println(zdt);
    }
}