import java.time.ZonedDateTime;
import java.time.format.DateTimeFormatter;
import java.util.Locale;
 
class Main {
    public static void main(String[] args) {
        String stdDateTime = "Mon, 14 May 2012 13:56:38 GMT";
        ZonedDateTime zdt = ZonedDateTime.parse(stdDateTime, DateTimeFormatter.RFC_1123_DATE_TIME);
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd MMM uuuu", Locale.ENGLISH);
        String strDate = zdt.format(formatter);
        System.out.println(strDate);
    }
}

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