What time is sunrise and sunset in Chelmsford?

Today and tomorrow's sunrise and sunset times in Chelmsford, Massachusetts. Plus a monthly calendar with dawn, dusk, solar noon, and day length.

Today

Thursday, October 15, 2026

Sunrise

6:56 AM

101° EDawn 6:28 AM

Sunrise in Chelmsford will be at 6:56:58 AM EDT (in 5h 3m).

Sunset

6:04 PM

259° WDusk 6:33 PM

Sunset in Chelmsford will be at 6:04:48 PM EDT (in 16h 11m).

Now

6:56a6:04p

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Night now · First light at 5:23 AM

Daylight: 11h 07m
Darkness: 9h 48m
Solar noon: 12:31 PM
Sun altitude: 50.9° below
Sun direction: 34° NE

How long golden hour and blue hour last

Tomorrow

Friday, October 16, 2026

Sunrise

6:58 AM

101° EDawn 6:29 AM

Sunrise in Chelmsford will be at 6:58:09 AM EDT (in 29h 4m).

Sunset

6:03 PM

259° WSWDusk 6:31 PM

Sunset in Chelmsford will be at 6:03:12 PM EDT (in 40h 9m).

Moon tonight

Phase, moonrise and moonset in Chelmsford

Waxing Crescent

23% illuminated

Moonrise: 12:18 PM
Moonset: 8:42 PM

Calendar

Eastern Time · select a day to expand

	Date	Dawn	Sunrise	Solar noon	Sunset	Dusk	Length
	1 Thu	6:12 AM	6:41 AM	12:35 PM	6:28 PM	6:56 PM	11h 47m 20s
	2 Fri	6:14 AM	6:42 AM	12:34 PM	6:26 PM	6:54 PM	11h 44m 29s
	3 Sat	6:15 AM	6:43 AM	12:34 PM	6:24 PM	6:52 PM	11h 41m 38s
	4 Sun	6:16 AM	6:44 AM	12:34 PM	6:23 PM	6:51 PM	11h 38m 47s
	5 Mon	6:17 AM	6:45 AM	12:33 PM	6:21 PM	6:49 PM	11h 35m 57s
	6 Tue	6:18 AM	6:46 AM	12:33 PM	6:19 PM	6:47 PM	11h 33m 06s
	7 Wed	6:19 AM	6:47 AM	12:33 PM	6:18 PM	6:46 PM	11h 30m 16s
	8 Thu	6:20 AM	6:48 AM	12:32 PM	6:16 PM	6:44 PM	11h 27m 27s
	9 Fri	6:21 AM	6:50 AM	12:32 PM	6:14 PM	6:42 PM	11h 24m 37s
	10 Sat	6:22 AM	6:51 AM	12:32 PM	6:12 PM	6:41 PM	11h 21m 48s
	11 Sun	6:24 AM	6:52 AM	12:32 PM	6:11 PM	6:39 PM	11h 18m 59s
	12 Mon	6:25 AM	6:53 AM	12:31 PM	6:09 PM	6:37 PM	11h 16m 11s
	13 Tue	6:26 AM	6:54 AM	12:31 PM	6:08 PM	6:36 PM	11h 13m 23s
	14 Wed	6:27 AM	6:55 AM	12:31 PM	6:06 PM	6:34 PM	11h 10m 36s
	15 Thu	6:28 AM	6:56 AM	12:31 PM	6:04 PM	6:33 PM	11h 07m 49s
Thursday, October 15 11h 07m 49s of daylight·−2m 47s vs. yesterday·twilight 6:28 AM – 6:33 PM Time 1:54 AM Altitude -50.9° Heading 34° NE Light Night 1:54 AM, Night, altitude -50.9 degrees
	16 Fri	6:29 AM	6:58 AM	12:30 PM	6:03 PM	6:31 PM	11h 05m 03s
	17 Sat	6:30 AM	6:59 AM	12:30 PM	6:01 PM	6:30 PM	11h 02m 17s
	18 Sun	6:31 AM	7:00 AM	12:30 PM	6:00 PM	6:28 PM	10h 59m 32s
	19 Mon	6:33 AM	7:01 AM	12:30 PM	5:58 PM	6:27 PM	10h 56m 47s
	20 Tue	6:34 AM	7:02 AM	12:30 PM	5:56 PM	6:25 PM	10h 54m 03s
	21 Wed	6:35 AM	7:04 AM	12:30 PM	5:55 PM	6:24 PM	10h 51m 20s
	22 Thu	6:36 AM	7:05 AM	12:29 PM	5:53 PM	6:22 PM	10h 48m 37s
	23 Fri	6:37 AM	7:06 AM	12:29 PM	5:52 PM	6:21 PM	10h 45m 55s
	24 Sat	6:38 AM	7:07 AM	12:29 PM	5:50 PM	6:19 PM	10h 43m 14s
	25 Sun	6:40 AM	7:08 AM	12:29 PM	5:49 PM	6:18 PM	10h 40m 34s
	26 Mon	6:41 AM	7:10 AM	12:29 PM	5:48 PM	6:16 PM	10h 37m 55s
	27 Tue	6:42 AM	7:11 AM	12:29 PM	5:46 PM	6:15 PM	10h 35m 17s
	28 Wed	6:43 AM	7:12 AM	12:29 PM	5:45 PM	6:14 PM	10h 32m 40s
	29 Thu	6:44 AM	7:13 AM	12:29 PM	5:43 PM	6:13 PM	10h 30m 04s
	30 Fri	6:45 AM	7:15 AM	12:29 PM	5:42 PM	6:11 PM	10h 27m 29s
	31 Sat	6:47 AM	7:16 AM	12:29 PM	5:41 PM	6:10 PM	10h 24m 55s

Photos

Sunrise and sunset photos of Chelmsford from Flickr.

FAQ

Frequently asked questions about sunrise and sunset in Chelmsford, United States

What time does the sun rise in Chelmsford today?: Sunrise in Chelmsford today (Thursday, October 15, 2026) is at 6:56 AM. The sun comes up in the E.
What time does the sun set in Chelmsford today?: Sunset today is at 6:04 PM, after 11h 07m of daylight.
When does it get dark in Chelmsford tonight?: Civil twilight ends at 6:33 PM. After that you need artificial light for most things outdoors. Astronomical twilight ends at 7:38 PM, which is when night starts by the standard definition.How long after sunset it gets dark
When is the longest day in Chelmsford, United States?: The longest day of 2026 in Chelmsford is Sunday, June 21, 2026, the summer solstice, with 15h 18m of daylight. In 2027 the summer solstice falls on June 21, 2027.More on the summer solstice
When is the shortest day in Chelmsford, United States?: The shortest day of 2026 in Chelmsford, Massachusetts is Monday, December 21, 2026, the winter solstice, with 9h 02m of daylight. In 2027 the winter solstice lands on December 21, 2027.
How much more daylight does Chelmsford get in summer than in winter?: Chelmsford gets 6h 15m more daylight on its longest day than on its shortest (15h 18m against 9h 02m). Averaged across the year, a day here has 12h 12m of daylight.
When is the earliest sunrise in Chelmsford?: The earliest sunrise of 2026 in Chelmsford is on Sunday, June 14, 2026, when the sun comes up at 5:07 AM.
When is the latest sunset in Chelmsford?: The latest sunset is on Friday, June 26, 2026 at 8:27 PM.
When is the earliest sunset in Chelmsford?: The earliest sunset of the year is on Tuesday, December 8, 2026, with the sun down by 4:11 PM.Why it comes before the shortest day
When is the latest sunrise in Chelmsford?: The latest sunrise is on Saturday, October 31, 2026 at 7:18 AM.
Does Chelmsford observe daylight saving time?: Yes. Chelmsford uses Eastern Time: clocks go forward on March 8, 2026, then back on November 1, 2026. Sunrise and sunset times jump by an hour on those dates.

Nearby

Other places close to Chelmsford

Cities near Chelmsford

National parks & monuments nearby

Fall color spots nearby, from Fall Photo Guide

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GET https://api.sunrisesunset.io/json?lat=42.59981&lng=-71.36728