{"id":1830746,"date":"2024-05-08T11:49:53","date_gmt":"2024-05-08T15:49:53","guid":{"rendered":"https:\/\/www.maproomblog.com\/?p=1830746"},"modified":"2024-05-08T11:49:56","modified_gmt":"2024-05-08T15:49:56","slug":"the-evolution-of-u-s-time-zones","status":"publish","type":"post","link":"https:\/\/www.maproomblog.com\/2024\/05\/the-evolution-of-u-s-time-zones\/","title":{"rendered":"The Evolution of U.S. Time Zones"},"content":{"rendered":"\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class=\"jetpack-video-wrapper\"><iframe loading=\"lazy\" title=\"Mapping Time: Evolution of US Time Zone Boundaries\" width=\"760\" height=\"428\" src=\"https:\/\/www.youtube.com\/embed\/AZ3ABUN97UU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div>\n<\/div><\/figure>\n\n\n\n<p><a href=\"https:\/\/www.youtube.com\/watch?v=AZ3ABUN97UU\">A short video<\/a> from Vivid Maps showing the evolution of time zone boundaries in the United States. (The trend was inexorably westward: Michigan started out completely CST.)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A short video from Vivid Maps showing the evolution of time zone boundaries in the United States. (The trend was inexorably westward: Michigan started out completely CST.)<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"link","meta":{"autoblue_enabled":true,"autoblue_custom_message":"","autoblue_shares":[],"autoblue_post_url":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[777],"tags":[158],"class_list":["post-1830746","post","type-post","status-publish","format-link","hentry","category-time-zones","tag-usa","post_format-post-format-link"],"jetpack_featured_media_url":"","jetpack-related-posts":[{"id":1787064,"url":"https:\/\/www.maproomblog.com\/2019\/01\/the-earths-climate-zones-are-shifting\/","url_meta":{"origin":1830746,"position":0},"title":"The Earth&#8217;s Climate Zones Are Shifting","author":"Jonathan Crowe","date":"31 January 2019","format":"link","excerpt":"Climate change is redrawing the map, writes Nicola Jones in a piece for\u00a0Yale Environment 360\u00a0last October. It's not just about polar ice caps, she writes: \"Sometimes, the lines on the map can literally be redrawn: the line of where wheat will grow, or where tornadoes tend to form, where deserts\u2026","rel":"","context":"In &quot;Weather and Climate&quot;","block_context":{"text":"Weather and Climate","link":"https:\/\/www.maproomblog.com\/category\/weather-and-climate\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1789534,"url":"https:\/\/www.maproomblog.com\/2020\/10\/covid-zones\/","url_meta":{"origin":1830746,"position":1},"title":"COVID Zones","author":"Jonathan Crowe","date":"12 October 2020","format":"link","excerpt":"Rather than applying restrictions across their entire jurisdictions, several authorities are designating zones to target measures to prevent the spread of novel coronavirus where the spread is at its greatest. Maps can quickly indicate not only where COVID is at its worst, but also where restrictions have been put into\u2026","rel":"","context":"In &quot;Health&quot;","block_context":{"text":"Health","link":"https:\/\/www.maproomblog.com\/category\/health\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2020\/10\/covid-zones.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2020\/10\/covid-zones.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2020\/10\/covid-zones.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2020\/10\/covid-zones.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2020\/10\/covid-zones.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2020\/10\/covid-zones.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":3941,"url":"https:\/\/www.maproomblog.com\/2017\/02\/xkcds-time-zone-map\/","url_meta":{"origin":1830746,"position":2},"title":"xkcd&#8217;s Time Zone Map","author":"Jonathan Crowe","date":"15 February 2017","format":"image","excerpt":"Randall Munroe is a bad man who is back with another bad map projection\u00a0to make our eyes bleed.\u00a0(If he does this often enough he'll have enough for a book. Heaven forfend.) This one\u00a0is, like his other maps, fiendishly subtle: it stretches and compresses countries to fit\u00a0where their time zones ought\u2026","rel":"","context":"In &quot;Art&quot;","block_context":{"text":"Art","link":"https:\/\/www.maproomblog.com\/category\/art\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/02\/xkcd-1799-1024x702.png?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/02\/xkcd-1799-1024x702.png?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/02\/xkcd-1799-1024x702.png?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2017\/02\/xkcd-1799-1024x702.png?resize=700%2C400 2x"},"classes":[]},{"id":5588,"url":"https:\/\/www.maproomblog.com\/2013\/06\/alberta-flood-maps\/","url_meta":{"origin":1830746,"position":3},"title":"Alberta Flood Maps","author":"Jonathan Crowe","date":"21 June 2013","format":"link","excerpt":"This is a list of maps related to the flooding in southern Alberta (Calgary, Canmore, Bragg Creek, High River, Okotoks, etc.). This list will be added to as needed. Feel free to contribute additional links in the comments. Evacuation zone maps from the City of Calgary, in PDF format. For\u2026","rel":"","context":"In &quot;Disasters&quot;","block_context":{"text":"Disasters","link":"https:\/\/www.maproomblog.com\/category\/disasters\/"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":1806583,"url":"https:\/\/www.maproomblog.com\/2022\/03\/mapping-daylight-saving-time\/","url_meta":{"origin":1830746,"position":4},"title":"Mapping Daylight Saving Time","author":"Jonathan Crowe","date":"30 March 2022","format":"link","excerpt":"Daylight saving time has been in the news again, with the U.S. Senate voting to make it permanent year-round. So it\u2019s worth looking at maps that explore the impact of standard time and daylight saving time, and time zones in general, on the time of sunrise and sunset. And as\u2026","rel":"","context":"In &quot;Time Zones&quot;","block_context":{"text":"Time Zones","link":"https:\/\/www.maproomblog.com\/category\/time-zones\/"},"img":{"alt_text":"Map of optimal time zone boundaries (Andy Woodruff)","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/03\/woodruff-optimal-time-zones-1024x808.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/03\/woodruff-optimal-time-zones-1024x808.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/03\/woodruff-optimal-time-zones-1024x808.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2022\/03\/woodruff-optimal-time-zones-1024x808.jpg?resize=700%2C400&ssl=1 2x"},"classes":[]},{"id":1785636,"url":"https:\/\/www.maproomblog.com\/2018\/05\/inaccurate-maps-of-the-ebola-virus-outbreak\/","url_meta":{"origin":1830746,"position":5},"title":"Inaccurate Maps of the Ebola Virus Outbreak","author":"Jonathan Crowe","date":"22 May 2018","format":"link","excerpt":"The Atlantic\u2019s Ed Yong looks at a problem in the public health response to this month's Ebola virus outbreak in the Democratic Republic of Congo: inaccurate maps of the areas affected by the virus. On Thursday, the World Health Organization released a map showing parts of the Democratic Republic of\u2026","rel":"","context":"In &quot;Health&quot;","block_context":{"text":"Health","link":"https:\/\/www.maproomblog.com\/category\/health\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2018\/05\/who-ebola-congo-17may18-1024x627.jpg?resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2018\/05\/who-ebola-congo-17may18-1024x627.jpg?resize=350%2C200 1x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2018\/05\/who-ebola-congo-17may18-1024x627.jpg?resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.maproomblog.com\/xq\/wp-content\/uploads\/2018\/05\/who-ebola-congo-17may18-1024x627.jpg?resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1830746","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/comments?post=1830746"}],"version-history":[{"count":1,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1830746\/revisions"}],"predecessor-version":[{"id":1830747,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/posts\/1830746\/revisions\/1830747"}],"wp:attachment":[{"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/media?parent=1830746"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/categories?post=1830746"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.maproomblog.com\/wp-json\/wp\/v2\/tags?post=1830746"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}