You are traveling from Tonga to American Samoa. Just before you cross the International Date Line, it is in the middle of the day on Tuesday. Once you cross the International Date Line, what day is it?

Once you cross the International Date Line, the day which come is described below in brief detailed explanation.

Explanation:

When you surpass the International dateline, the date and day change. If you surpass it moving eastward, the day goes inverse by one, and the date inverse by one.  If you surpass it moving westward, the day goes ahead by one, and the date advances by one. The International dateline is not a subject of international regulation, but it's one of the few measures adopted globally.