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The areas that are the first to see the daylight of a new day vary by the season.
Around the June solstice, the first area would be anyplace within the Kamchatka Time Zone (UTC 12) that is far enough north to experience midnight sun on the given date.
Kiribati's easternmost islands, the southern Line Islands south of Hawaii, have the most advanced time on Earth, UTC 14 hours.
South of Kiribati, the IDL returns westwards but remains east of 180°, passing between Samoa and American Samoa.
These include portions of the Republic of Kiribati, including Millennium Island in the Line Islands, as well as Samoa during the southern summer.
For the two hours between and UTC each day, three different calendar dates are observed at the same time in different places on Earth.A 1995 realignment of the IDL made Caroline Island one of the first points of land on Earth to reach January 1, 2000 on the calendar (UTC 14).As a result, this atoll was renamed Millennium Island.(See § Cartographic practice and convention below.) A person who goes around the world from east to west (the same direction as Magellan's voyage) would gain or set their clock back one hour for every 15° of longitude crossed, and would gain 24 hours for one circuit of the globe from east to west if they did not compensate by setting their clock forward one day when they crossed the IDL.In contrast, a west-to-east circumnavigation of the globe loses an hour for every 15° of longitude crossed but gains back a day when crossing the IDL.In much of this area, the IDL follows the 165°W meridian.Accordingly, Samoa, Tokelau, Wallis and Futuna, Fiji, Tonga, Tuvalu and New Zealand's Kermadec Islands and Chatham Islands are all west of the IDL and have the same date.E-book collections include back volumes per series or per subject.Please sign up and be the first to know about our latest products.For example, at UTC Thursday, it is Wednesday in American Samoa (UTC−11), Thursday in most of the world, and Friday in Kiritimati (UTC 14).During the first hour (UTC –), all three calendar dates include inhabited places.