“While the Prime Meridian feels sacrosanct, the international date line isn’t a meridian; it’s pretty arbitrary,” Tim Montenyohl, a cartographer who has mapped the date line, wrote in 2018.

FORT MAGSAYSAY, Philippines — Following two months of comprehensive and deliberate exercises designed to build combined joint capacity and readiness during Exercises Balikatan and Salaknib 2024 ...

The international date line roughly follows the 180th meridian north to south through the middle of the Pacific Ocean. It is located halfway around the world from the prime meridian, which crosses ...