Sir Sandford Fleming and the Creation of Time Zones

Humans have understood how to calculate the length of a day pretty accurately for a long time. But there wasn’t a standard way to approach time on a global scale until the late 19th century, and happened because of railroads. Research: “INTERNATIONAL CONFERENCE HELD AT WASHINGTON FOR THE PURPOSE OF FIXING A PRIME MERIDIAN AND A UNIVERSAL DAY.” (Protocols of the Proceedings.” October 1884. https://www.gutenberg.org/files/17759/17759-h/17759-h.htm Fleming, Sandford. “Terrestrial time: a memoir.” 1876. Digitized: https://archive.org/details/cihm_06112/page/n17/mode/2up Fleming, Sandford. “Papers on time-reckoning and the selection of a prime meridian to be common to all nations.” 1879. Digitized: https://archive.org/details/cihm_03135/page/n17/mode/2up Creet, Mario. “FLEMING , Sir SANDFORD.” Dictionary of Canadian Biography. http://www.biographi.ca/en/bio.php?id_nbr=7370 Creet, Mario. “Sandford Fleming and Universal Time.” Scientia Canadensis. Volume 14, numéro 1-2 (38-39). https://www.erudit.org/fr/revues/scientia/1990-v14-n1-2-scientia3118/800302ar.pdf Shepardson, David. “U.S. Senate approves bill to make daylight saving time permanent.” Reuters. March 16, 2022. https://www.reuters.com/world/us/us-senate-approves-bill-that-would-make-daylight-savings-time-permanent-2023-2022-03-15/ “What Shall Be the Prime Meridian for the World?” International institute for preserving and perfecting weights and measures. Committee on standard time.  Cleveland, O., 1884. https://babel.hathitrust.org/cgi/pt?id=mdp.39015019895203&view=1up&seq=8 Biggerstaff, Valerie. “Opinion: When Georgia had two time zones.” Appen Media. April 14, 2021. https://www.appenmedia.com/opinion/opinion-when-georgia-had-two-time-zones/article_0bb3e6c4-9c84-11eb-a1f5-6b1a42a8e61a.html Lange, Katie. “Daylight Saving Time Once Known As 'War Time.'” U.S. Department of Defense. March 8, 2019. https://www.defense.gov/News/Feature-Stories/story/Article/1779177/daylight-saving-time-once-known-as-war-time/ “DID BEN FRANKLIN INVENT DAYLIGHT SAVING TIME?