Twice welcomed in the New year the passengers of flight Tokyo-Los Angeles. They took off from the Japanese capital the first day of January at twelve-thirty at night, and landed in the US on December 31 at 16:27, due to the difference in time zones. And similar are not uncommon.
Due to the difference in time zones of the planet, many flights arrive at the destination a day early if the plane flies to the East.
But if the plane is flying West a passenger loses one hour in each time zone.