java convert HH:mm:ss.SSS to milliseconds

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import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.time.ZoneOffset;
import java.util.Date;
import java.util.TimeZone;

public class Program {

    private static final SimpleDateFormat FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
    
    static {
        FORMAT.setTimeZone(TimeZone.getTimeZone(ZoneOffset.UTC));
    }

    public static long getTime(String time) throws ParseException {
        Date date = FORMAT.parse("1970-01-01 " + time);
        return date.getTime();
    }

    public static void main(String[] args) throws Exception {
        long time = getTime("00:03:50.500");
        System.out.println("milliseconds time: " + time);  // milliseconds time: 230500
    }
}