Daylight Saving Time (DST) is the seasonal clock change that moves the clock forward in spring and back in autumn. In 2025, DST will begin on different dates depending on where you live. Understanding the schedule helps you plan sleep, commutes, and electronics changes with less disruption.

When Daylight Saving Time 2025 starts and ends

North America

• Starts: March 9, 2025 at 2:00 a.m. local time (clocks forward 1 hour)
• Ends: November 2, 2025 at 2:00 a.m. local time (clocks back 1 hour)
• Note: Some areas do not observe DST, e.g., most of Arizona and Hawaii.

Europe and the United Kingdom

• EU DST starts on the last Sunday in March (March 30, 2025)
• EU DST ends on the last Sunday in October (October 26, 2025)
• UK follows the same schedule, with British Summer Time (BST) in effect during DST.

Other regions

Many countries in Asia, Africa, and the Middle East do not observe DST, while a few experiment with it periodically. Always verify local time changes since rules can drift or be temporarily adjusted.

Impacts of Daylight Saving Time 2025

Despite public debate, DST affects daily life in multiple ways. Some benefits are often cited, while drawbacks are widely discussed. This year, consider how these shifts affect your routines, businesses, and digital systems.

• Energy use and daylight: The intent is to reduce evening lighting needs, but the net effect depends on geography, season, and behavior.
• Sleep and health: Clock changes disrupt circadian rhythms, especially around the spring forward transition, affecting sleep duration, mood, and alertness.
• Safety and travel: Sudden time changes can affect commutes, flight schedules, and school or work timing, potentially increasing miscommunications around DST days.
• Business and technology: Meetings, deadlines, and software scheduling can be impacted; ensure calendars, servers, and cron jobs handle time changes gracefully.
• Public policy and sentiment: Some regions consider abolishing DST or changing the dates; policy debates continue in many jurisdictions.

Preparation tips for Daylight Saving Time 2025

• Ready devices: Ensure smartphones, computers, smart TVs, clocks, and appliances update automatically or are manually synchronized before the change.
• Plan sleep shifts gradually: If possible, start adjusting bedtimes a few days ahead of the change by 15-minute increments.
• Communicate calendars: Confirm meeting times with colleagues or family across time zones, and check travel itineraries around DST days.
• Safeguard health routines: Maintain consistent meal times, exercise, and sunlight exposure to support circadian alignment.
• Family and pets: Adjust feeding or walking schedules for pets to the new time; prepare kids for the early wake-up or late nights.
• Home and auto: Adjust timers for lights, thermostats, irrigation, and security systems; review cron jobs and server timestamps for apps that rely on time stamps.
• Outdoor planning: Use the longer evening daylight to schedule outdoor activities or store outdoor equipment ahead of time to minimize sunlight disruption.
• Safety checks: When driving on DST change day, allow for slightly slower reactions for a few days and avoid rushing during commutes.

Practical takeaways

Mark the DST dates on your calendar, review your digital systems, and adjust your routines gradually. By anticipating the transition in 2025, you can reduce sleep disruption, keep schedules aligned, and ride the new daylight more effectively.

FAQs

When does Daylight Saving Time 2025 begin in the United States?

March 9, 2025, at 2:00 a.m. local time.

When does Daylight Saving Time 2025 end in the United States?

November 2, 2025, at 2:00 a.m. local time.

Do the UK and EU observe DST in 2025?

Yes. The EU and UK switch on the last Sundays of March and October: March 30 and October 26, 2025.

Do all countries observe DST?

No. Many countries do not observe DST, and others change dates or discontinue DST over time.