You don't gain a day by traveling West, only by traveling East. You lose a day going West.
You lose a day
No. That's why they invented the international date line.
You "gain" a day - that is, the day shifts to the previous one. So, if it was 11pm on Sunday the 12th, and you crossed eastward over the International Date line, it is now 11pm on Saturday the 11th.
The date on the eastern side of the date line is one day ahead of the date on the western side. As you travel across the International Date Line from west to east, you gain a day, and as you travel from east to west, you lose a day.
The International Date Line is where you either gain or lose a day when you cross it, depending on the direction of travel.
If you are crossing date line from west to east you'll gain one day.
When traveling from west to east then yes, you lose a day. But, when travelling from east to west you gain a day. Example: American Samoa is east of the dateline and independent Samoa is west of the dateline, although there is only about 60 nautical miles between the islands. So Wednesday in American Samoa is Thursday in independent Samoa.
when u travel from west to east u gain a day while when u travel east to west u lose a day. it means that when u go from west to east u are one day ahead from west and when u go to west from east u are one day back from east.
When you cross the IDL from east to west ... like going from the US to Japan ... you move your watch and calendar to read a day later. You skip over 24 hours, and you 'lose' them. When you cross it going from west to east ... like toward the US and Canada from Asia ... you move your watch and calendar to read a day earlier. You get to live the same 24 hours all over again, so you 'gain' a day.
You either gain or lose a day - depending on which direction you're travelling.
The International Date Line is the meridian where the date changes by one day when crossed east to west. This happens in order to account for the time difference between different parts of the world. Crossing the International Date Line from east to west, you "gain" a day, and crossing from west to east, you "lose" a day.
The time difference between the Prime Meridian (0 degrees longitude) and the International Date Line (180 degrees longitude) is 12 hours. Crossing from one side to the other, you would either gain or lose a day, depending on the direction of travel.