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Last updated: December 29, 2025

What is daylight saving time and when does it happen?

You casually look at the clock, your watch or the time on your phone every day. However, twice a year, there is a time ritual in most of the U.S. that changes our relationship with daylight. In the spring, you can enjoy extended evening hours and more outdoor time in the sun. In the fall and winter, you may be thankful for those brighter mornings on your commute to school or work.  

Mark your calendars! In 2026, you gain an hour of daylight starting on March 8, and the clocks will “fall back” an hour on Nov. 1. 

2026 daylight saving time dates

On Sunday, March 8, set your clocks forward by an hour for daylight saving time if you’re in a participating location. This will make sunrise occur an hour later than the day before, which increases the amount of daylight we have during the evening. We change our clocks twice a year (spring forward, fall back), so in the fall, you will set your clocks back by an hour on Sunday, Nov. 1. The change always occurs at 2 a.m. on the given day, so you can prepare before you go to bed or reset your clocks when you wake up depending on your Sunday plans. 

Future daylight saving time dates 

History of daylight saving time

According to the Astronomical Applications Department of the U.S. Naval Observatory, daylight saving time (DST) began in March 1918 when the Standard Time Act was passed. One of the main reasons daylight saving time was created was to save energy and to get more use out of our natural daylight. Since March 1918, there have been many updates and changes to the idea and laws passed.  

Which states observe daylight saving time?

The U.S. is one of 70 countries that participates in daylight saving time. After the Energy Policy Act of 2005 was passed, every state or territory in the U.S. had the choice to opt in or opt out of daylight saving time. Hawaii, Arizona (with the exception of the Navajo Nation) and five U.S. territories have opted out of daylight saving time. The entire state of Indiana observes daylight saving time, but there are 80 counties in the Eastern Time zone and 12 counties in the Central Time zone.  

Safety tip: Check your smoke alarms on daylight saving time days 

One of our community partners, the American Red Cross knows a thing or two about safety. Each year, they encourage everyone to not only “turn your clocks” in March and November, but to also test all smoke alarms throughout their homes. Daylight saving time clock resets happen at regular intervals each year, making it a perfect reminder to check smoke alarms. 

Smoke alarms can help prevent major accidents. Making sure they are installed correctly and working properly can make a huge difference if a fire does occur. Here is more information that the American Red Cross shares about the importance of checking your smoke alarms.   

Health benefits of daylight saving time

Daylight saving time isn’t just a time to turn your clocks, it can also be a great time to start or continue healthy habits. These can include going for a walk, running or playing outside in the evenings during the spring. In the fall and winter, extra light in the morning makes for the perfect time to try out a morning exercise routine. Not only is this good for your physical health, but it may also improve your overall mental health.  

Final thoughts on daylight saving time

Keep an eye on the clock, especially in March and November! Being prepared can help you have a smooth transition during these yearly time changes. We’ll leave you with a pro tip – start adjusting your sleep schedule as the time change approaches. A few days before you spring forward or fall back, start going to bed 15 minutes earlier or later depending on the season. It will help you keep your sleep routine on track!