I want to make a timer that stops at a specific time in java

So I tried to make a timer that will stop at specific time i put in the if statement, though it didn't work. Is there a way I can do this that will work?

import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Calendar;

public class time {
    public static void main(String args[]) {
        do {
            Date date = Calendar.getInstance().getTime();
            DateFormat dateFormat = new SimpleDateFormat("dd hh:mm:ss");
            String strDate = dateFormat.format(date);
            System.out.println(strDate);
            if (strDate == "06 03:22:30") {
                System.out.println("timer done");
            }
        } while (true);
    }
}