// Verify that attempting to change timezone returns the same instance
        Clock newClock = clock.withZone(ZoneId.systemDefault());
        assertSame(clock, newClock, "withZone() should return the same clock instance");
    }

    @Test
    @DisplayName("MonotonicClock should maintain monotonic time progression")

     * The provided zone parameter is ignored.
     *
     * @param zone the target timezone (ignored)
     * @return this clock instance
     */
    @Override
    public Clock withZone(ZoneId zone) {
        // Monotonic clock is always UTC-based
        return this;
    }

        }

        /**
         * Default date time formatter for ISO 8601 format with UTC timezone.
         */
        public static final DateTimeFormatter DEFAULT_DATE_PRINTER = ISODateTimeFormat.dateTime().withZone(DateTimeZone.UTC);

        /**
         * Converts a Date object to its string representation in ISO 8601 format.
         *
         * @param value The Date object to convert.