The History of Time Zones: Every Year
June 5, 2026
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2:58Now PlayingThe History of Time Zones: Every Year
YouTube Description
as posted by the channelThe history of time zones since their creation in 1884.
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Notes:
- Time zones appear when a LEGALLY OFFICIAL standard based off of a GMT offset is established.
- Daylight Savings Time is not shown unless there is an all-year DST year in effect.
- For wars, time zones of the invading force are shown when enforced at a state or subdivision level. Some wars/fronts had more information than others. Strangely, Japan seemed to have not enforced a time zone in the Aleutians during WW2 despite doing so on most other fronts. Insurgencies are not shown.
- There were contradictory sources or missing precise dating for some minor countries and early dates. I made the best educated guess I could with the information available to me.
- The 2026 change in Alberta's time zone technically begins in November, but I went ahead and included it.
These databases had the majority of information. Sometimes they contradicted, so I had to make the best educated choice I could:
Other sources:
An Act Respecting the Reckoning of Time. Bill, Parliament of Canada (1891).
- Gould, Ralph Edgar. Standard Time Throughout The World. Washington: U.S. Department of Commerce, 1935.
- Guo, Qing-sheng (2001). A Study on the Standard Time Changes for the Past 100 Years in China. China Historical Materials of Science and Technology. 22 (3): 269–280.
Hanggoro, Hendaru Tri. “Kisah Zona Waktu Di Indonesia.” Historia, March 12, 2012.
Uluengin, Mehmet Bengü. “Secularizing Anatolia Tick by TickClock Towers in the Ottoman Empire and the Turkish Republic.” International Journal of Middle East Studies 42, no. 1 (2010)1736.
Music:
"Hiding Your Reality" by Kevin MacLeod
found at www.incompetech.com
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