Question

what is International date line.??​

Answer 1

The International Date Line (IDL) is an imaginary line on Earth's surface defining the boundary between one day and the next. ... The International Date Line is located halfway around the world from the prime meridian (0° longitude) or about 180° east (or west) of Greenwich, London, UK, the reference point of time zones.

Answer 2

The International Date Line (IDL) is an imaginary line demarcation on the surface of Earth that runs from the North Pole to the South Pole and demarcates the change of one calendar day to the next. It passes through the middle of the Pacific Ocean, roughly following the 180° line of longitude but deviating to pass around some territories and island groups.