New Hampshire: Does the state observe daylight saving time?
New Hampshire observes daylight saving time under state law and has not enacted a year-round time law.
New Hampshire's standard time law moves clocks forward on the second Sunday in March and back on the first Sunday in November, matching federal dates. A 2026 bill would have dropped daylight saving time only if Massachusetts, Vermont, Rhode Island, and Maine did the same, but it has not become law.
What the law says
At 2 o'clock ante-meridian of the second Sunday in March of each year, the standard time in this state shall be advanced one hour, at 2 o'clock ante-meridian of the first Sunday in November of each year, the standard time in this state shall, by the retarding of one hour, be made to coincide with the astronomical time hereinbefore described as Eastern Standard Time, so that between the second Sunday in March at 2 o'clock ante-meridian and the first Sunday in November at 2 o'clock ante-meridian in each year the standard time in this state shall be one hour in advance of the United States Standard Time.
Sources
- N.H. Rev. Stat. Ann. § 21:36 (Standard Time) Official · gc.nh.gov
- NCSL, Daylight Saving Time State Legislation (updated Oct. 12, 2026) Secondary · ncsl.org
Confirm with the state
- Agency
- New Hampshire General Court
- Website
- gc.nh.gov
How bordering states compare
- Maine Observes DST, law to go year-roundMaine observes daylight saving time; its law switches to year-round Eastern daylight time once federal law allows it.
- Massachusetts Observes DSTMassachusetts observes daylight saving time and has no enacted law to switch to year-round daylight or standard time.
- Vermont Observes DSTVermont observes daylight saving time by statute and has not passed a law to change that.
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