<a class="mw-redirect" href="https://en.wikipedia.org/wiki/Western_Samoa" id="mwARo" rel="mw:WikiLink" title="Western Samoa">Western Samoa</a> changes the <a href="https://en.wikipedia.org/wiki/International_Date_Line" id="mwARs" rel="mw:WikiLink" title="International Date Line">International Date Line</a>, causing Monday (July 4) to occur twice, resulting in a leap year with 367 days.