Speaking of New Zealand...

If you fly from the place where the sun sets to the place where the sun rises, where does all the time go? New Zealand is perpetually 16 hours ahead of us here in the eastern time zone. 13 hours ahead of the airport in LA. If you left LA at say, noon, on Saturday, you would touch down in New Zealand at 5pm on Sunday. Although you will have been in a plane for 16 hours, the time that elapsed from the time you left LA will have been 29 hours. Where did your thirteen hours go? They are like thirteen hours of your life that just didn't happen. You can redeem them on the return trip; if you make a return trip. But they are gone if you don't. How is that possible?
Speaking of "How is that possible?" My friend has an option on his laptop where he can delete a file forever? Forever? Where does this information go? Has technology figured out a way to make something actually disappear? Two questions: 1) Can something immaterial disappear? We know something material cannot just spontaneously vanish, but what about immaterial objects. For that matter, can they appear, or is the term "appear" confined only to material objects? If immaterial objects can disappear, then deleting something forever is not amazing. If they, like material objects cannot disappear, if they are subject to the first law of thermodynamics, then this is quite incredible. 2)Is information immaterial? If it is, and immaterial objects can disappear then this is quite incredible. If it is not (material) then it is also incredible since material objects cannot disappear. The only scenario in which a file being deleted is not incredible is if information is immaterial and immaterial means it can disappear. Seeing that this isn't entirely implausible, but finding it presumptuous, it seems to me that either the my friend's computer is lying, that his file has not been sent to oblivion, but to some place human beings cannot yet go, or that technology is now capable of performing miracles!