Have you heard of Time Zone GMT+14? How many days/dates exists in earth at a time? 1? 2? or 3? You are traveling from Samoa to Kiribati. What happens? You have heard that when you travel towards East you lose a day! Well I am prepared for that! When I started from Samoa it was 11:30 pm Sunday. When I reached Kiribati it is 12:30 am Monday? No it is 12:30 am Tuesday!!!!!!!!!!!!!!
This is because some of the places (Kiribati) decided to be in eastern hemisphere to be with the same date with other near by countries.