Question

If ship crosses 180 degree meridian from east to west what will happen

Answer 1

if ship crosses the 180 degree meridian from west to east ,it will gain a day.for example;if the time in the ship is 12 noon on december 31 on the west of the 180 degree meridian , then the time will be 12 noon on january 1 as soon as the ship reaches east of that meridian