Time in New Hampshire, as in all US states, is regulated by the United States Department of Transportation.[1] New Hampshire is in the Eastern Time Zone (ET) and observes daylight saving time (DST).

Time in New Hampshire
 TimeUTC
Standard time (winter)Eastern Standard Time (EST)UTC−05:00
Daylight time (summer)Eastern Daylight Time (EDT)UTC−04:00

Independent of daylight saving time, solar noon at the March equinox is about 11:57 in southwestern New Hampshire and 11:50 in southeastern New Hampshire. New England, which includes New Hampshire, is one of the few areas in the United States where solar noon is before noon. Because solar noon is earlier than most of the rest of the country, and New Hampshire is at a high latitude, sunset can be earlier than in most states.

United States time zones
Solar noon (independent of DST)[2]
Date
(approx.)		Location
HinsdaleConcordPortsmouth
March equinox11:5711:5311:50
June solstice11:5111:4811:45
September equinox11:4311:3911:36
December solstice11:4811:4411:41

Some state lawmakers have encouraged the state to switch to Atlantic Standard Time without DST. A bill to do so, as long as Massachusetts did the same, passed the state's House of Representatives in 2017 but was voted down by the state's Senate.[3]

IANA time zone database

The IANA time zone database identifier for New Hampshire is America/New_York.[4]

See also

Time in New England states: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, Vermont

References

  1. ↑ "Uniform Time". US Department of Transportation. 13 February 2015. Archived from the original on 24 August 2018. Retrieved 24 August 2018. The U.S. Department of Transportation (DOT) oversees the Nation's time zones and the uniform observance of Daylight Saving Time. The oversight of time zones was assigned to DOT because time standards are important for many modes of transportation.
  2. ↑ "NOAA Solar Calculator". noaa.gov. Retrieved March 9, 2019.
  3. ↑ Concord Monitor: "Senate votes down push to switch N.H.’s time zone" May 11, 2017
  4. ↑ "Time Zone Database". www.iana.org.
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