Current Time in Chelmsford, Massachusetts, USA
6:42:01 AM
06:42:01
EST (Eastern Standard Time) · UTC−05:00
America/New_York
Time zone details
Chelmsford is currently on standard time; daylight saving time is observed in 2026
Daylight in Chelmsford
Location facts
Place
- Country
- USA
- State
- Massachusetts
- County
- Middlesex County
- Place type
- Populated place
- Country currency
- US Dollar (USD)
Practical
- Country languages
- English, Spanish, Hawaiian, French
- Dialing code
- +1
- Population
- 33,925
- Elevation
- 75 m
Geography
- Geographic coordinates
- 42° 35' N / 71° 22' W
Convert Chelmsford time
Compare Chelmsford with another city or time zone
Chelmsford follows the same clock and daylight-saving rules as Boston
Popular conversions (current offsets)
All times shown relative to Chelmsford local time
Clock changes in Chelmsford
2:00 AM EST3:00 AM EDT
Clocks move forward 1 hour
2026
past
Daylight saving time starts
2:00 AM EST3:00 AM EDT
Clocks move forward 1 hour
past
Daylight saving time ends
2:00 AM EDT1:00 AM EST
Clocks move back 1 hour
Future clock changes, 2027–2030
Sun & Moon details
Sun
- Sunrise
- Solar noon
- Sunset
- Daylight duration
- 9 hr 46 min2 min 10 sec shorter than the previous day
Twilight
- Civil twilight
- –
- Nautical twilight
- –
- Astronomical twilight
- –
View full Sun & Moon detailsHide full Sun & Moon details
Sunday, November 15, 2026
View Chelmsford on Savvy Time's time-zone map
Sun
- Sunrise
- Sunset
- Day length
- 9 hr 46 min2 min 10 sec shorter than the previous day
- Solar noon
- (28.8° altitude)
Civil twilight
- Dawn to dusk
- –
Additional twilight
- Nautical dawn to dusk
- –
- Astronomical dawn to dusk
- –
Moon
- Phase
- First Quarter (33% illuminated)
- Moonrise
- Moonset
- Previous principal phase
- New Moon — Monday, November 9, 2026 at
- Next principal phase
- First Quarter — Tuesday, November 17, 2026 at
Seven-day daylight outlook
| Local date | Sunrise | Sunset | Day length | Daily change |
|---|---|---|---|---|
| 9 hr 46 min | 2 min 10 sec shorter than the previous day | |||
| 9 hr 44 min | 2 min 7 sec shorter than the previous day | |||
| 9 hr 42 min | 2 min 5 sec shorter than the previous day | |||
| 9 hr 40 min | 2 min 2 sec shorter than the previous day | |||
| 9 hr 38 min | 2 min shorter than the previous day | |||
| 9 hr 36 min | 1 min 58 sec shorter than the previous day | |||
| 9 hr 34 min | 1 min 55 sec shorter than the previous day |
Weather forecast for Chelmsford
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Plan around Chelmsford
Upcoming public holidays in Massachusetts
- Thanksgiving Day
- Christmas Day
- New Year's Day
Nearby scheduled airports for Chelmsford, Massachusetts, USA
Laurence G Hanscom FieldBEDMedium airport · Serves Bedford15.8 km south-southeast
Source: OurAirports record · BED / KBED
About 15.8 km (9.8 mi) south-southeast of Chelmsford
Scheduled airline service in source data
Manchester-Boston Regional AirportMHTMedium airport · Serves Manchester37.4 km north
Source: OurAirports record · MHT / KMHT
About 37.4 km (23.2 mi) north of Chelmsford
Scheduled airline service in source data
Boston Logan International AirportBOSLarge airport · Serves Boston39.6 km southeast
Source: OurAirports record · BOS / KBOS
About 39.6 km (24.6 mi) southeast of Chelmsford
Scheduled airline service in source data
Nearby places
Frequently asked questions
- What time zone is Chelmsford in?
- Chelmsford uses Eastern Standard Time (EST, UTC−5) in winter and Eastern Daylight Time (EDT, UTC−4) in summer. Its IANA time zone is America/New_York.
- When is the next clock change in Chelmsford?
- Clocks in Chelmsford move forward 1 hour on Sunday, March 14, 2027 at 2:00 AM, changing from EST (UTC−05:00) to EDT (UTC−04:00)
- Does Chelmsford observe daylight saving time?
- Yes. Chelmsford observes daylight saving time: EDT (UTC−4) in summer and EST (UTC−5) in winter.
- What is the UTC offset of Chelmsford?
- Chelmsford is UTC−5 in winter and UTC−4 in summer