--- description: Get ready to spring forward this weekend — Daylight Saving Time begins on Sunday title: What to Know About This Weekend's Daylight Saving Time Spring Forward image: https://static.time.com/v3/assets/bltea6093859af6183b/blt189080ec738a6e58/6988bd2a196cf4bcee03f1fb/daylight-saving-time.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 ---  * [U.S.](/section/us/) ## U.S. Update your preferences in [Account Settings](/account/preferences/) Close * [daylight saving time](/tag/daylight-saving-time/) ## daylight saving time Update your preferences in [Account Settings](/account/preferences/) Close # What to Know About This Weekend's Daylight Saving Time Spring Forward by [Mahita Gajanan](/author/mahita-gajanan/) ## Mahita Gajanan Update your preferences in [Account Settings](/account/preferences/) Close Gajanan is an editor at TIME. Mar 6, 2017 8:23 PM CUT  Retro alarm clock on wooden table Retro alarm clock on wooden tableTatomm—Getty Images/iStockphoto by [Mahita Gajanan](/author/mahita-gajanan/) ## Mahita Gajanan Update your preferences in [Account Settings](/account/preferences/) Close Gajanan is an editor at TIME. Mar 6, 2017 8:23 PM CUT Get ready to spring forward this weekend — Daylight Saving Time [begins on Sunday](http://time.com/4671665/montana-daylight-saving-time/ "undefined"). Here’s everything you need to know about the time-change. **Clocks will jump forward by one hour on March 12 at 2 a.m.** The jump forward in time pushes sunrise and sunset by an hour from the day before and means an end to dark winter nights, as evenings will see more light. That also means you’ll lose an hour of sleep Saturday night into Sunday morning. **The U.S. implemented Daylight Saving Time on March 19, 1918, with the official reason that setting clocks an hour ahead would save fuel and money.** Researchers have found, however, that the practice may [fuel the use of energy](http://time.com/4549397/daylight-saving-time-history-politics/ "undefined"). According to a 2011 [study](http://environment.yale.edu/kotchen/pubs/revDSTpaper.pdf "undefined"), electricity consumption grew as much as 4% after some Indiana counties began observing Daylight Saving Time. **Not every state observes Daylight Saving.** Although it is a standard practice across the U.S. and much of the world, both Arizona and Hawaii have [opted out](https://www.washingtonpost.com/news/the-fix/wp/2015/03/12/a-bunch-of-states-want-to-get-rid-of-daylight-saving-time-is-your-state-one-of-them/?utm%5Fterm=.254567df7c8b "undefined") of observing Daylight Saving Time. Several other states have debated staying on standard time throughout the year, like Illinois and Michigan, while others like Florida and New Mexico have considered staying on Daylight Saving throughout the year, according to the Washington _Post_. **Springing forward can help reset your sleep schedule.** Apart from making sure to set your alarms correctly, you can use Daylight Saving to [reboot sleeping habits](http://time.com/4252688/daylight-saving-time-2016/ "undefined"). Turn off electronic devices about an hour before bed and develop a consistent bedtime ritual, like journaling or reading. ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/4692281/daylight-savings-time-change/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/4692281/daylight-savings-time-change/"},"headline":"What to Know About This Weekend's Daylight Saving Time Spring Forward","datePublished":"2017-03-06T20:23:10.000Z","dateModified":"2026-02-23T03:41:16.361Z","description":"Spring forward on Sunday","url":"https://time.com/4692281/daylight-savings-time-change/","keywords":["daylight saving time","Sleep","onetime"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/blt189080ec738a6e58/6988bd2a196cf4bcee03f1fb/daylight-saving-time.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Mahita Gajanan","jobTitle":"Gajanan is an editor at TIME.","url":"https://time.com/author/mahita-gajanan/"}],"articleSection":"U.S.","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/blt189080ec738a6e58/6988bd2a196cf4bcee03f1fb/daylight-saving-time.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"Retro alarm clock on wooden table","caption":"Retro alarm clock on wooden table","creditText":"Tatomm—Getty Images/iStockphoto","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/section/us/","name":"U.S."}},{"@type":"ListItem","position":2,"item":{"@id":"/tag/daylight-saving-time/","name":"daylight saving time"}},{"@type":"ListItem","position":3,"item":{"@id":"https://time.com/4692281/daylight-savings-time-change/","name":"What to Know About This Weekend's Daylight Saving Time Spring Forward"}}]}] ```