International Date Line

The International Date Line extends through the Pacific Ocean from the North Pole to Antarctica, marking where calendar dates change at 180 degrees longitude point.

The establishment of this date line in 1884 created a standardized system for global time coordination, following the prime meridian conference in Greenwich, England.

Different Pacific island nations have adjusted their positions relative to the date line to maintain connections with their primary trading and cultural partners.

When travelers cross this boundary heading westward they advance one calendar day forward, while crossing eastward moves the date one day backward.

The date line creates a 24-hour time difference between locations mere kilometers apart, making it mathematically possible to experience the same day twice.

Location: Antarctic Treaty area

GPS coordinates: 0.00000,-180.00000

Latest update: June 3, 2025 08:03