2025 time change dates for New Hampshire
At 2:00 AM the clocks jump straight to 3:00 AM in New Hampshire. That hour never happens, and everyone loses an hour of sleep.
At 2:00 AM the clocks return to 1:00 AM, so that hour is lived through twice and the night is an hour longer.
New Hampshire keeps EST in winter and shifts one hour forward for the summer.
Countdown to the next change
Economic Impact of DST in New Hampshire
The economic effects of Daylight Saving Time in New Hampshire are real but modest, and studies disagree on their size. Retailers and hospitality businesses generally favour DST, arguing that lighter evenings encourage shopping, dining out and other after-work spending — the US retail lobby was one of the main forces behind the 2005 extension of the DST period.
The transitions themselves carry a cost. Research from Chmura Economics has put the one-off economic cost of the spring change in the United States at roughly $430 million a year, driven by lost productivity, workplace injuries and the health effects of a disrupted night's sleep.
Background
- The European Parliament voted in 2019 to end mandatory clock changes, but member states never agreed on which time to keep, so the change has stalled indefinitely.
- The Uniform Time Act of 1966 ended a chaotic period in which US cities set their own clock-change dates, and established a uniform national schedule.
- The energy case for DST is weak by modern standards. A US Department of Energy study in 2008 found savings of about 0.5% of daily electricity use, and other studies have found no saving at all.
Tips for New Hampshire
Be extra cautious driving the Monday after the spring time change - accident rates increase.
Consider the time change when scheduling meetings with people in other time zones.
Take advantage of the 'extra' hour in fall to catch up on sleep or tackle a project.
Use the extra evening daylight in summer for outdoor activities and vitamin D.
Frequently asked questions
When do the clocks change in New Hampshire in 2025?
Clocks go forward on Sunday, March 9, 2025 and back on Sunday, November 2, 2025.
Which way do the clocks go?
"Spring forward, fall back" is the usual mnemonic: forward one hour in spring, back one hour in autumn.
Do I have to change anything myself?
Phones, computers and anything that syncs over the internet update on their own. Car clocks, ovens, microwaves and older wall clocks generally do not.
Is Daylight Saving Time being scrapped?
It has been proposed in many places and adopted in few. The European Parliament voted in 2019 to end mandatory clock changes and the change has stalled; in the United States the Sunshine Protection Act has repeatedly passed the Senate without becoming law. Most of the world that changes its clocks is still changing them.