Test the time format HH:MM:SS.sss

So I'm writing a code that tests to see if an input is in the right time format of HH:MM:SS.sss, to check it properly I run four different inputs, three that should return false and one that should return True, but for some reason when I input the correct format I get an "Java.text.ParseExcetion data: "02:26:13.125"" and it returns false. what am i doing wrong or missing? here is my code

public static boolean checkTradeTimeFmt(String trade_time){
        if (trade_time == null)
            return false;

        //set the format to use as a constructor argument
        SimpleDateFormat dateFormat = new SimpleDateFormat("hh:mm:ss.sss");

        if (trade_time.trim().length() != dateFormat.toPattern().length())
            return false;

        dateFormat.setLenient(false);

        try {
            //parse the trade_time parameter
            dateFormat.parse(trade_time.trim());
        }
        catch (ParseException pe) {
            return false;
        }
        return true;
    }