/**
     * {@link Date}を{@link Calendar}に変換します。
     *
     * @param date
     *            {@link Date}
     * @param locale
     *            ロケール
     * @return 変換された{@link Calendar}
     */
    protected static Calendar toCalendar(final Date date, final Locale locale) {
        final Calendar calendar;
        if (locale == null) {
            calendar = Calendar.getInstance();
        } else {

        }
    }

    protected long getDelay() {
        if (ruleList.isEmpty()) {
            return 0;
        }
        final Calendar cal = getCurrentCal();
        final int h = cal.get(Calendar.HOUR_OF_DAY);
        final int m = cal.get(Calendar.MINUTE);
        final int d = cal.get(Calendar.DAY_OF_WEEK); // SUN(1) - SAT(7)
        for (final IntervalRule rule : ruleList) {
            if (rule.isTarget(h, m, d)) {

        } else if (UPDATE_POLICY_DAILY.equals(updatePolicy)) {
            // Get local midnight boundary
            Calendar cal = Calendar.getInstance();

            cal.set(Calendar.HOUR_OF_DAY, 0);
            cal.set(Calendar.MINUTE, 0);
            cal.set(Calendar.SECOND, 0);
            cal.set(Calendar.MILLISECOND, 0);

            if (cal.getTime().after(lastModified)) {
                checkForUpdates = true;

            final Calendar cal = Calendar.getInstance();
            cal.setTime(date);
            return cal;
        }
        return null;
    }

    /**
     * ローカルの{@link TimeZone}と{@link Locale}をもつ{@link Calendar}に変換します。
     *
     * @param calendar
     *            {@link Calendar}
     * @return 変換された{@link Calendar}
     */
    public static Calendar localize(final Calendar calendar) {

        final Calendar calendar = toCalendar("10/9/7");
        assertThat(new SimpleDateFormat("yyyy/MM/dd").format(calendar.getTime()), is("2010/09/07"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testToCalendar_MediumStyle() throws Exception {
        final Calendar calendar = toCalendar("2010/9/7");

        final Calendar calendar = toCalendar("11:49");
        assertThat(new SimpleDateFormat("HH:mm:ss").format(calendar.getTime()), is("11:49:00"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testToCalendar_MediumStyle() throws Exception {
        final Calendar calendar = toCalendar("11:49:10");
        assertThat(new SimpleDateFormat("HH:mm:ss").format(calendar.getTime()), is("11:49:10"));

    /**
     * {@link Date}を{@link Calendar}に変換します。
     *
     * @param date
     *            {@link Date}
     * @param locale
     *            ロケール
     * @return 変換された{@link Calendar}
     */
    protected static Calendar toCalendar(final Date date, final Locale locale) {
        final Calendar calendar;
        if (locale == null) {
            calendar = Calendar.getInstance();
        } else {

        final Date date = new Date();
        final Calendar cal = CalendarConversionUtil.toCalendar(date);
        assertEquals(date, cal.getTime());
    }

    /**
     *
     * @throws Exception
     */
    @Test
    public void testLocalize() throws Exception {
        final Calendar calendar = Calendar.getInstance(TimeZone.getTimeZone("JST"));
        final Calendar local = CalendarConversionUtil.localize(calendar);

            var daysInMonth = moment([year,...

        final Calendar calendar = toCalendar("10/9/7 11:49", Locale.JAPAN);
        assertThat(new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").format(calendar.getTime()), is("2010/09/07 11:49:00"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testToCalendar_MediumStyle() throws Exception {
        final Calendar calendar = toCalendar("2010/9/7 11:49:10", Locale.JAPAN);