*/
    public static Calendar localize(final Calendar calendar) {
        assertArgumentNotNull("calendar", calendar);
        final Calendar localCalendar = Calendar.getInstance();
        localCalendar.setTimeInMillis(calendar.getTimeInMillis());
        return localCalendar;
    }

     *
     * @return the current calendar instance
     */
    protected Calendar getCurrentCal() {
        final Calendar cal = Calendar.getInstance();
        cal.setTimeInMillis(ComponentUtil.getSystemHelper().getCurrentTimeAsLong());
        return cal;
    }

    /**
     * Adds a new interval rule to the rule list.
     *
     * @param from the start time in HH:MM format