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 in 1910-1995 - 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 in 1910-1995 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 in 1910-1995 - Map presentation arranged by WorldTimeZone
Eastern Date / (Asiatic side) / (Monday) / (Day+1) IDL Western Date / (American side) / (Sunday) / (Day-1)
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).



Majuro, Marshall Islands
Kwajalein atoll, Marshall Islands

Kwajalein atoll changed its date from the Eastern (Asiatic) side to the Western Date / (American) side on September 30, 1969 and was one day out of synch with the rest of the Marshall Islands until August 20, 1993.
At the request of the Marshallese government, Kwajalein atoll returned to the same date as the other Marshall Islands, skipping one day - Saturday, August 21, 1993.

(Chukotka, Russia)

(New Zealand)

(Chatham Isl.)

(Fiji)

(Tarawa, Kiribati)

(Nauru)

(Tuvalu)

(Wallis and Futuna)

(Tonga)

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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.

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.

Samoa (Apia)
American Samoa (Pago Pago)

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).

(Hawaii)

(Tahiti, French Polynesia)

(Marquesas Isl.)

(Tokelau)

(Phoenix Islands, Kiribati)

(Kiritimati, Kiribati)


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