import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Locale;

public class Main {
	public static void main(String[] args) {
		ZoneId zoneId = ZoneId.of("Europe/Dublin");
		String input = "07/10/2021 18:50:15";
		DateTimeFormatter dtf = DateTimeFormatter.ofPattern("dd/MM/uuuu HH:mm:ss", Locale.ENGLISH);
		LocalDateTime ldt = LocalDateTime.parse(input, dtf);
		ZonedDateTime zdt = ldt.atZone(zoneId);
		System.out.println(zdt);
	}
}