4 July 1892

Western Samoa changes the International Date Line, causing Monday (July 4) to occur twice, resulting in a leap year with 367 days.

Western Samoa (now known as Samoa) changed its position relative to the International Date Line in 2011 to improve its economic and business relations with major trading partners, including Australia and New Zealand. By shifting the date line, Samoa aligned its time zone with these countries, making it easier for businesses to operate and communicate, as the time difference was reduced. This change effectively skipped a day, moving Samoa from the last time zone on earth to the first. The shift was aimed at fostering better economic integration and taking advantage of the same working days as its main trade partners.