// 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;
    }