1) You can travel east until you reach the 180th meridian. At that point, you are travelling west.
2) You can travel east until you reach the International Date Line. At that point, you are travelling west.
3) You can travel east until you reach the 90th meridian east. At that point, you are travelling west.
4) You can travel east until you reach the Prime Meridian. At that point, you are travelling west.
2) You can travel east until you reach the International Date Line. At that point, you are travelling west.
3) You can travel east until you reach the 90th meridian east. At that point, you are travelling west.
4) You can travel east until you reach the Prime Meridian. At that point, you are travelling west.