import java.time.*;
import java.time.format.DateTimeFormatter;
import java.util.Locale;
 
public class Main {
    public static void main(String[] args) {
        DateTimeFormatter dtf = DateTimeFormatter.ofPattern("uuuu-MM-dd HH:mm:ss Z", Locale.ENGLISH);
        OffsetDateTime odt = OffsetDateTime.parse("2014-09-20 00:00:00 -0500", dtf);
        System.out.println(odt);
 
        // What does it represent at UTC?
        Instant instant = odt.toInstant();
        System.out.println(instant);
    }
}

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