Happy Spring! As the days grow longer and the weather begins to warm, it’s time to prepare for one of the annual adjustments that affect millions of Americans: Daylight Saving Time 2025. This year, as every year, we’ll be moving our clocks forward by one hour, marking a fresh start for longer summer evenings and sunnier commutes. Here’s everything you need to know about when daylight saving time starts, when does time change, and what time is the time change tonight.
What Is Daylight Saving Time?
Daylight Saving Time is the practice of setting clocks forward by one hour during the warmer months to extend evening daylight. This adjustment aims to conserve energy, promote outdoor activities, and enhance public safety. While the concept dates back to the early 20th century, DST continues to be an essential part of modern life for most U.S. states and territories.
Why Do We Have Daylight Saving Time?
The rationale behind DST extends beyond just “losing an hour” every spring. The main benefits include:
- Extended Evening Daylight: More daylight in the evenings can reduce energy consumption by lowering the need for artificial lighting and heating.
- Enhanced Public Safety: Longer daylight hours contribute to lower crime rates and safer roads.
- Promoting Outdoor Activities: Extra daylight encourages people to engage in recreational and community activities, which can have positive health and social benefits.
While the system is not without its critics, the advantages of DST continue to play a significant role in the way we manage our time and energy resources throughout the year.
When Is Daylight Saving Time 2025?
For 2025, Daylight Saving Time kicks off on Sunday, March 9, 2025, at precisely 2:00 a.m. local time. At that moment, clocks in participating states will be set forward to 3:00 a.m. This means that if you’re asking “when does time change”, the answer is different depending on your time zone:
- Eastern Time (ET): Clocks will jump from 2:00 a.m. ET to 3:00 a.m. ET.
- Central Time (CT): Clocks will move from 2:00 a.m. CT to 3:00 a.m. CT.
- Mountain Time (MT): Clocks will shift from 2:00 a.m. MT to 3:00 a.m. MT.
- Pacific Time (PT): Clocks will advance from 2:00 a.m. PT to 3:00 a.m. PT.
For those wondering what time is the time change tonight, f you’re in a region observing DST, be sure to adjust your clocks at 2:00 a.m. local time this coming Sunday.
Specific Time Zone Considerations in America
It’s important to note that not all U.S. states and territories observe Daylight Saving Time. For instance:
- Hawaii and most of Arizona (excluding the Navajo Nation) do not participate in DST due to their unique geographic and climatic conditions.
- U.S. territories like Puerto Rico, Guam, American Samoa, the Northern Mariana Islands, and the U.S. Virgin Islands remain on standard time year-round.
These differences mean that while most of the continental United States will “spring forward” on March 9, residents in these areas will not experience the time change.
How to Prepare for the Time Change

While losing an hour of sleep can be a minor inconvenience, a little preparation can help ease the transition. Here are some tips to get ready for Daylight Saving Time 2025:
- Adjust Your Sleep Schedule: Gradually go to bed 15 minutes earlier in the days leading up to March 9 to help your body adapt to the loss of an hour.
- Update Your Devices: Manually change the time on devices that don’t automatically adjust, such as microwaves, wall clocks, and some digital appliances.
- Housekeeping Checklist: Use the time change as a reminder to check batteries in smoke detectors, adjust your ceiling fan direction, and update your home’s air filters.
These simple steps can help you can minimize any disruption caused by the time change and fully enjoy the benefits of longer, brighter evenings.
So Happy Daylight Saving Time 2025! Enjoy the longer days and the promise of a vibrant, energy-efficient spring ahead.