import java.time.LocalDate;
import java.time.LocalTime;
import java.time.OffsetDateTime;
import java.time.OffsetTime;
import java.time.ZoneOffset;
import java.time.format.DateTimeFormatter;
import java.util.Locale;
 
public class Main {
	public static void main(String[] args) {
		DateTimeFormatter dtfInput = DateTimeFormatter.ofPattern("uuuuMMdd", Locale.ENGLISH);
		LocalDate date = LocalDate.parse("20210628", dtfInput);
		OffsetDateTime odt = date.atTime(OffsetTime.of(LocalTime.MIN, ZoneOffset.UTC));
		System.out.println(odt);
 
		// Custom format
		DateTimeFormatter dtfOutput = DateTimeFormatter.ofPattern("EEE MMM dd HH:mm:ss O uuuu", Locale.ENGLISH);
		System.out.println(dtfOutput.format(odt));
	}
}

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