{"id":3650,"date":"2019-03-22T17:31:00","date_gmt":"2019-03-23T00:31:00","guid":{"rendered":"https:\/\/dornsife.usc.edu\/news\/stories\/is-year-round-daylight-saving-time-a-good-idea-maybe-not\/"},"modified":"2025-02-14T16:26:59","modified_gmt":"2025-02-15T00:26:59","slug":"year-round-daylight-saving-may-not-be-healthy","status":"publish","type":"post","link":"https:\/\/dornsife.usc.edu\/news\/stories\/year-round-daylight-saving-may-not-be-healthy\/","title":{"rendered":"Is year-round daylight saving time a good idea? Maybe not."},"content":{"rendered":"\n\n\n    \n                                \n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--article-hero \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--article-hero\"\n    \n      >\n\n    \n<div class=\"inner-wrapper\">\n          \n<div class=\"f--field f--image\">\n\n    \n    \n    \n    \n    \n    \n              \n      <img\n                            data-src=\"https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2023\/04\/story-2978-768x432.jpg\"\n          data-srcset=\"https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2023\/04\/story-2978-768x432.jpg 768w\"          data-sizes=\"(min-width:1200px) 75vw, (min-width:768px) 83vw, 100vw\"          class=\"lazyload\"\n        \n                  alt=\"Is year-round daylight saving time a good idea? Maybe not.\"\n        \n        \n                                      \/>\n\n    \n    \n  \n  \n\n<\/div>\n  \n      <div class=\"image-caption\">\n          \n<div class=\"f--field f--description\">\n\n    \n  California voters support keeping daylight saving time throughout the year, but USC Dornsife researchers say that might not be a good idea. (Photo: iStock.)\n\n\n<\/div>\n    <\/div>\n  \n  <div class=\"text-wrapper\">\n          <nav aria-label=\"Breadcrumb\" class=\"breadcrumbs\">\n        <ul>\n                      <li><a href=\"\/news\/stories\/\">News<\/a><\/li>\n                      <li><a href=\"\/news\/stories\/\/?category=faculty\">Faculty<\/a><\/li>\n                  <\/ul>\n      <\/nav>\n    \n              \n<div class=\"f--field f--page-title\">\n\n    \n  <h1>Is year-round daylight saving time a good idea? Maybe not.<\/h1>\n\n\n<\/div>\n    \n          <div class=\"subtitle\">\n            \n<div class=\"f--field f--description\">\n\n    \n  USC Dornsife experts Steve Kay and Travis Longcore cite the biological challenges of time change and sticking with standard time may be best. <strong>[1\u00bc min read]<\/strong>\n\n\n<\/div>\n      <\/div>\n    \n           <strong class=\"author-field\"><span >By<\/span><a href=\"mailto:communication@dornsife.usc.edu\">Joanna Clay<\/a><\/strong>\n    \n          <span class=\"post-date-field\">March 22, 2019<\/span>\n      <\/div>\n<\/div>\n\n\n  <\/div><\/div>\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--social-share \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--social-share\"\n    \n      >\n\n    \n  <div class=\"content-wrapper\">\n    <span class=\"a2a_kit a2a_kit_size_32 addtoany_list\" style=\"line-height: 32px;\">\n      <span class=\"title\">\n        Share\n      <\/span>\n                       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class=\"a2a_label visually-hidden\">Email<\/span>\n          <\/a>\n                  <\/span>\n  <\/div>\n\n  <\/div><\/div>\n \n\n\n\n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--rich-text \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--rich-text\"\n    \n      >\n\n    \n      \n<div class=\"f--field f--wysiwyg\">\n\n    \n  <p>If you were yawning more than usual thanks to the recent switch to daylight saving time, you weren&rsquo;t alone. It takes some people a full week to recover from feeling more sluggish than usual after rolling back the clock for daylight saving time.<\/p>\n<p>&ldquo;It really messes people up,&rdquo; said <a href=\"https:\/\/dornsife.usc.edu\/news\/stories\/2940\/cancer-circadian-clock-disruptor\/\" target=\"_blank\">Steve Kay<\/a> of biological sciences at USC Dornsife College of Letters, Arts and Sciences. Kay, USC Provost Professor of Neurology, Biomedical Engineering and Biological Sciences and director of the <a href=\"https:\/\/michelson.usc.edu\/\" target=\"_blank\">USC Michelson Center for Convergent Bioscience<\/a>, is considered one of the preeminent experts in circadian rhythm.<\/p>\n<p>&ldquo;It affects human performance. The data has been clear in terms of traffic accidents, and there&rsquo;s also data that it&rsquo;s not great in terms of cardiovascular health: Heart attacks go up.&rdquo;<\/p>\n<p>In California, daylight saving time could become year-round after voters in November approved <a href=\"https:\/\/ballotpedia.org\/California_Proposition_7,_Permanent_Daylight_Saving_Time_Measure_(2018)\" target=\"_blank\">Proposition 7<\/a>, provided federal law is changed to allow the move.<\/p>\n<p>Some proponents of the proposition brought up the health concerns, such as upticks in traffic accidents and heart attacks, but USC experts say they&rsquo;re missing the mark. Permanent daylight saving time wouldn&rsquo;t solve this issue; instead, it would prolong it &mdash;&nbsp;adding more days of sluggish recovery to the year.<\/p>\n<p>There&rsquo;s a long-held understanding that experiencing light when you first get up is good for you, said <a href=\"https:\/\/dornsife.usc.edu\/news\/stories\/2940\/cancer-circadian-clock-disruptor\/\" target=\"_blank\">Travis Longcore<\/a> of biological sciences and <a href=\"https:\/\/spatial.usc.edu\/?team=travis-longcore\" target=\"_blank\">spatial sciences<\/a> at USC Dornsife, who researches <a href=\"https:\/\/medium.com\/@USC\/why-proposition-7-is-bad-for-public-health-825905ba54f6\" target=\"_blank\">night lighting<\/a>.<\/p>\n<p>If we could shift our work and school schedules to accommodate the time change we would be fine, he said, but we don&rsquo;t. That &ldquo;summer schedule,&rdquo; during which most of us wake up before the sun, could have real health implications if done long term.<\/p>\n<p><a href=\"https:\/\/news.usc.edu\/155186\/is-year-round-daylight-saving-time-a-good-dea\/\" target=\"_blank\">See USC News for the full story &gt;&gt;<\/a><\/p>\n\n\n\n<\/div>\n\n\n  <\/div><\/div>\n\n\n\n  \n        \n  \n    \n\n\n\n\n\n\n<div\n  class=\"cc--component-container cc--article-related-stories \"\n\n  \n  \n  \n  \n  \n  \n  >\n  <div class=\"c--component c--article-related-stories\"\n    \n      >\n\n    \n  <div class=\"inner-wrapper\">\n    \n                  <article>\n              \n<div class=\"f--field f--cta-title\">\n\n    \n  <h3>\n          <a href=\"https:\/\/dornsife.usc.edu\/news\/stories\/researchers-to-develop-new-sleep-disorder-treatments\/\" \n                        class=\"\" \n      >A good night\u2019s sleep may be in sight<\/a>\n      <\/h3>\n\n\n<\/div>\n        <\/article>\n              <article>\n              \n<div class=\"f--field f--cta-title\">\n\n    \n  <h3>\n          <a href=\"https:\/\/dornsife.usc.edu\/news\/stories\/ancient-roots-of-easter-bunny\/\" \n                        class=\"\" \n      >Sacred hares, banished winter witches and pagan worship &#8211; the roots of Easter Bunny traditions are\u00a0ancient<\/a>\n      <\/h3>\n\n\n<\/div>\n        <\/article>\n              <article>\n              \n<div class=\"f--field f--cta-title\">\n\n    \n  <h3>\n          <a href=\"https:\/\/dornsife.usc.edu\/news\/stories\/science-of-sleep\/\" \n                        class=\"\" \n      >Science of Sleep<\/a>\n      <\/h3>\n\n\n<\/div>\n        <\/article>\n            <\/div>\n\n\n  <\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>USC Dornsife experts Steve Kay and Travis Longcore cite the biological challenges of time change and sticking with standard time may be best. <strong>[1\u00bc min read]<\/strong><\/p>\n","protected":false},"author":52,"featured_media":3653,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[10],"tags":[751],"class_list":["post-3650","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faculty","tag-usc-michelson-center"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Is year-round daylight saving time a good idea? Maybe not.<\/title>\n<meta name=\"description\" content=\"USC Dornsife experts cite the biological challenges of time change and sticking with standard time may be best. [1\u00bc min read]\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/dornsife.usc.edu\/news\/stories\/year-round-daylight-saving-may-not-be-healthy\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Is year-round daylight saving time a good idea? Maybe not.\" \/>\n<meta property=\"og:description\" content=\"USC Dornsife experts cite the biological challenges of time change and sticking with standard time may be best. [1\u00bc min read]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/dornsife.usc.edu\/news\/stories\/year-round-daylight-saving-may-not-be-healthy\/\" \/>\n<meta property=\"og:site_name\" content=\"USC Dornsife News\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/uscdornsife\" \/>\n<meta property=\"article:published_time\" content=\"2019-03-23T00:31:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-02-15T00:26:59+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/dornsife.usc.edu\/news\/wp-content\/uploads\/sites\/7\/2023\/04\/story-2978.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"800\" \/>\n\t<meta property=\"og:image:height\" content=\"525\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Margaret Crable\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@uscdornsife\" \/>\n<meta name=\"twitter:site\" content=\"@uscdornsife\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/dornsife.usc.edu\/news\/stories\/year-round-daylight-saving-may-not-be-healthy\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/dornsife.usc.edu\/news\/stories\/year-round-daylight-saving-may-not-be-healthy\/\"},\"author\":{\"name\":\"Margaret Crable\",\"@id\":\"https:\/\/dornsife.usc.edu\/news\/#\/schema\/person\/079941d34348eaa3a2f145191f66290c\"},\"headline\":\"Is year-round daylight saving time a good idea? 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