History of the Standard Time Zone charts of the World from 1894 to present

History of the International Date Line from 1844 to present

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International Date Line from 2011 to now - map presentation arranged by WorldTimeZone
(WorldTimeZone map may not be used or reproduced without permission or credit to WorldTimeZone.com)

180° 150°w 120°w 90°w 60°w 30°w 30°e 60°e 90°e 120°e 160°e 180°
M Y X-ray Whiskey Victor Uniform Tango Sierra Romeo Quebec Papa Oscar Novemb Zulu Alpha Bravo Charlie Delta Echo Foxtrot Golf Hotel India Kilo Lima M Y
International Date Line from 2011 to now -  map presentation arranged by WorldTimeZone
+12|-12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12|-12
/   1844   /   1845   /   1845-1867   /   1867-1892   /   1892-1899   /   1899- 1910   /   1910-1995   /   1995-2011   /   2011-now   /   
International Date Line from 2011 to now - Map presentation arranged by WorldTimeZone
Eastern Date / (Asiatic side) / (Monday) / (Day+1) IDL Western Date / (American side) / (Sunday) / (Day-1)
Samoa (Apia)
Samoa (Apia) changed the Western (American) date back to the Eastern (Asiatic) date at midnight on Thursday, 29 December 2011, which was followed by Saturday, 31 December 2011, now reflecting its ties to Australia and New Zealand

Tokelau (Fakaofo)
Tokelau (Fakaofo) chose to join Samoa (Apia) in switching Western (American) date to the Eastern (Asiatic) date and by redrawing the International Date Line at midnight on 29 December 2011, now reflecting its ties to New Zealand.

Kiribati:
  - Tarawa, Kiribati
  - Phoenix Islands, Kiribati
  - Line Islands (Kiritimati), Kiribati


Kiribati introduced a change of date for its eastern half (Phoenix UTC-11:00 and Line Islands UTC-10:00 observed American dates) on 31 December 1994.
International Date Line was moved eastwords almost reaching the 150w meridian, and thus to observe the same Eastern (Asian) date throughout its territory.
Tarawa, Kiribati time zone remain the same UTC+12:00
Phoenix Islands, Kiribati changed its time zone UTC-11:00 to UTC+13:00
Line Islands (Kiritimati), Kiribati changed its time zone UTC-10:00 to UTC+14:00

Philippines
The Philippines changed its date to the Eastern (Asiatic) side in 1845 as trade interests of the Philippines turned more and more away from the Latin America (around Cape Horn) and increased trade with China, the Malay peninsula, the Dutch East Indies (route around the Cape of Good Hope).

(Chukotka, Russia)

(New Zealand)

(Chatham Isl.)

(Fiji)

(Majuro, Marshall Islands)

(Nauru)

(Tuvalu)

(Wallis and Futuna)

(Tonga)

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Cook Islands
Cook Islands changed its date from the Eastern (Asia, New Zealand, Australia) side to the Western (American) side on Christmas day 1899, celebrating Christmas twice to correct the calendar.

American Samoa (Pago Pago)
Samoa (Apia) changed the Western (American) date back to the Eastern (Asiatic) date at midnight on Thursday, 29 December 2011, which was followed by Saturday, 31 December, now reflecting its ties to Australia and New Zealand

Kingdom of Samoa changed its Eastern (Asiatic) date to the Western (American) date on Monday, 4 of July 1892, having two American Independence Days in succession.
In 1899 the Kingdom of Samoa was divided by the Germany, USA / UK to the western islands (German Samoa) , the eastern islands (American Samoa). (U.K. was compensated with other territories in the Pacific and West Africa).

Alaska (U.S.)
Alaska was a Russian territory (Russian America) until 1867 keeping the same date as at home (Eastern or Asiatic date).
On Friday, 6 October 1867 (Julian calendar, Asiatic date), Alaska prepared to have another Friday, 6 October 1867 (Julian calendar, American date), but transitioning into Friday, 18 October (Gregorian calendar, American date). The result was a total change of +12 days (+13 days adjustment from the Julian calendar to the Gregorian calendar and -1 day for moving from Asiatic date to the American date).

Morrell and Byers Isl. (fake islands)
Morrell and Byers Isl. were removed, returning the line to the 180 meridian all the way to the equator and Kiribati-Fiji-Samoa.

Captain Morrell falsely reported the discovery of a small islands northwest of the Hawaii and named one island as Byers island (after New York owner of the ship James Byers) and another island named after himself (Morrell island). In 1875 the British Admiralty removed the nonexistent Morrell and Byers Islands from its nautical charts, however these "fake islands" continued to appear on different charts (maps, globes) until 1950-1970 by different publishers.

(Hawaii)

(Tahiti, French Polynesia)

(Marquesas Isl.)


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