Local Time Date and Timezone

 Where is Chelmsford? (United States, US)

Chelmsford is a city located in United States (US).
Latitude 42.59981 Longitude -71.36728

  Chelmsford location on the United States (US) map

 Information about Chelmsford

• City: Chelmsford
• Country: United States (US)
• Latitude: 42.59981
• Longitude: -71.36728
• Time Zone: America/New_York

 Time zone and UTC offset ofChelmsford

Chelmsford, United States is in the America/New_York time zone, which is currently UTC-4. This time zone observes daylight saving time (currently in effect). The next clock change is on November 1, 2026.

 Current time difference with other cities

• Chelmsford is 5 hours behind London
• Chelmsford is 3 hours ahead of Los Angeles
• Chelmsford is 8 hours behind Dubai
• Chelmsford is 13 hours behind Tokyo
• Chelmsford is 15 hours behind Sydney

 Frequently asked questions about time inChelmsford

What time zone is Chelmsford in?

Chelmsford, United States is in the America/New_York time zone (currently UTC-4).

Does Chelmsford observe daylight saving time?

Yes, the clocks change during the year in this time zone.

What are the coordinates of Chelmsford?

Chelmsford is located at latitude 42.59981 and longitude -71.36728.

  Sunrise, sunset and moon phase inChelmsford today

Astronomical data for October 15, 2026 in Chelmsford, calculated for the America/New_York time zone. All times are local.

 Sun

• Sunrise: 06:59
• Solar noon: 12:31
• Sunset: 18:03
• Length of day: 11 h 4 min

 Moon

• Moon phase: 🌒 Waxing Crescent
• Illumination: 27%
• Moon age: about 5.1 days
• Moonrise: 12:19
• Moonset: 20:43

 Other cities inUnited States

• Current local time in New York City
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 All cities and towns in United States

City of Chelmsford, Massachusetts

Chelmsford () is a town in Middlesex County, Massachusetts, United States. Chelmsford was incorporated in May 1655 by an act of the Massachusetts General Court. When Chelmsford was incorporated, its local economy was fueled by lumber mills, limestone quarries, and kilns. In the 1700s, the Chelmsford militia played a role in the American Revolution at the Battle of Lexington and Concord and the Battle of Bunker Hill. The farming community of East Chelmsford was incorporated as Lowell in the 1820s; over the next decades it would go on to become one of the first large-scale factory towns in the United States because of its early role in the country's Industrial Revolution. Chelmsford experienced a drastic increase in population between 1950 and 1970, coinciding with the connection of U.S. Route 3 in Lowell to Massachusetts Route 128 in the 1950s and the extension of U.S. Route 3 from Chelmsford to New Hampshire in the 1960s. Chelmsford has a representative town meeting form of government. The town has one public high school—Chelmsford High School, which was ranked among the top 500 schools in the nation in 2015—as well as two middle schools, and four elementary schools. The charter middle school started in Chelmsford became a regional charter school (Innovation Academy Charter School) covering grades 5 through 12, now located in Tyngsborough. Chelmsford high school age students also have the option of attending the Nashoba Valley Technical High School, located in Westford. In 2011, Chelmsford was declared the 28th best place to live in the United States by Money magazine.
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