Sunrise and sunset times in Chelmsford, MA
Check out today's and tomorrow's sunrise and sunset times in Chelmsford, as well as the whole calendar for October 2026.
Today
October 1, 2026. Current time: 11:11:33 am
First light at 6:14:52 am
Sunrise time: 6:41:31 am
Sunset time: 6:28:35 pm
Last light at 6:55:14 pm
Sun position chart
Now · Sun altitude: 40.3° · Azimuth: 152° (SE)
Daylight Golden Hour Dawn & dusk (civil twilight) Night
Day length: 11 hours, 47 minutes
7 hours, 17 minutes left for today's sunset in Chelmsford
Moon will set on Oct 1 at 12:44 PM
Moon will rise on Oct 1 at 9:17 PMMoon phase: 🌖 Waning Gibbous (72%)🌑 New moon: Oct 10 at 11:50 AM · 🌕 Full moon: Oct 26 at 12:13 AMTomorrow
October 2, 2026
First light at 6:15:58 am
Sunrise time: 6:42:37 am
Sunset time: 6:26:50 pm
Last light at 6:53:29 pm
Day length: 11 hours, 44 minutes
Tomorrow will be 3 minutes shorter than today in Chelmsford
Moon will set on Oct 2 at 1:50 PM Moon will rise on Oct 2 at 10:21 PMMoon phase: 🌖 Waning Gibbous (55%)
- Chelmsford, Massachusetts
- Latitude: 42.599815 (North)
- Longitude: -71.367287 (West)
- Time zone: Eastern Time EDT
Shortest day in Chelmsford, MA
The shortest day of the year will be in 2 months and 20 days, during the winter solstice on December 21, 2026, with a daylight length of 9 hours and 6 minutes.Longest day in Chelmsford, MA
The longest day of the year was around 3 months ago, during the summer solstice on June 21, 2026, with a daylight length of 15 hours and 22 minutes.
October 2026 - Chelmsford, Massachusetts - Sunrise and sunset calendar
Sunrise and sunset times, civil twilight start and end times as well as solar noon, and day length for every day of October in Chelmsford.
The day length shortens by 1 hour, 22 minutes over the course of October 2026 in Chelmsford, MA - from 11 hours, 47 minutes on the first day to 10 hours, 24 minutes on the last day.
| Day | First Light | Sunrise | Sunset | Last Light | Day Length | Day Length Variation | Solar Noon
Time of day when the sun reaches its highest point in the sky.
|
Max Sun Altitude | Nautical Twilight Start | Nautical Twilight End | Astronomical Twilight Start | Astronomical Twilight End | Night Length
Calculated form this day's sunset to the next day's sunrise.
|
Moon phase |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Thu, Oct 1 | 6:14:52 am | 6:41:31 am | 6:28:35 pm | 6:55:14 pm | 11h 47m 4s | -2m 51s | 12:35:03 pm | 44° | 5:42:11 am | 7:27:55 pm | 5:09:07 am | 8:00:59 pm | 12h 14m 2s | 🌖 (66%) |
| Fri, Oct 2 | 6:15:58 am | 6:42:37 am | 6:26:50 pm | 6:53:29 pm | 11h 44m 13s | -2m 51s | 12:34:44 pm | 43.6° | 5:43:18 am | 7:26:09 pm | 5:10:18 am | 7:59:10 pm | 12h 16m 54s | 🌖 (55%) |
| Sat, Oct 3 | 6:17:05 am | 6:43:44 am | 6:25:06 pm | 6:51:45 pm | 11h 41m 22s | -2m 51s | 12:34:25 pm | 43.2° | 5:44:26 am | 7:24:24 pm | 5:11:28 am | 7:57:22 pm | 12h 19m 45s | 🌗 (43%) |
| Sun, Oct 4 | 6:18:11 am | 6:44:51 am | 6:23:22 pm | 6:50:02 pm | 11h 38m 31s | -2m 51s | 12:34:07 pm | 42.9° | 5:45:33 am | 7:22:40 pm | 5:12:37 am | 7:55:36 pm | 12h 22m 36s | 🌘 (32%) |
| Mon, Oct 5 | 6:19:17 am | 6:45:58 am | 6:21:39 pm | 6:48:19 pm | 11h 35m 41s | -2m 50s | 12:33:48 pm | 42.5° | 5:46:40 am | 7:20:57 pm | 5:13:47 am | 7:53:50 pm | 12h 25m 27s | 🌘 (22%) |
| Tue, Oct 6 | 6:20:24 am | 6:47:06 am | 6:19:56 pm | 6:46:37 pm | 11h 32m 50s | -2m 51s | 12:33:31 pm | 42.1° | 5:47:47 am | 7:19:15 pm | 5:14:56 am | 7:52:05 pm | 12h 28m 18s | 🌘 (14%) |
| Wed, Oct 7 | 6:21:31 am | 6:48:14 am | 6:18:13 pm | 6:44:56 pm | 11h 29m 59s | -2m 51s | 12:33:13 pm | 41.7° | 5:48:54 am | 7:17:33 pm | 5:16:05 am | 7:50:21 pm | 12h 31m 9s | 🌘 (7%) |
| Thu, Oct 8 | 6:22:38 am | 6:49:22 am | 6:16:31 pm | 6:43:15 pm | 11h 27m 9s | -2m 50s | 12:32:56 pm | 41.3° | 5:50:01 am | 7:15:52 pm | 5:17:14 am | 7:48:39 pm | 12h 33m 59s | 🌘 (2%) |
| Fri, Oct 9 | 6:23:45 am | 6:50:30 am | 6:14:50 pm | 6:41:35 pm | 11h 24m 20s | -2m 49s | 12:32:40 pm | 41° | 5:51:07 am | 7:14:12 pm | 5:18:23 am | 7:46:57 pm | 12h 36m 49s | 🌘 (0.3%) |
| Sat, Oct 10 | 6:24:52 am | 6:51:39 am | 6:13:09 pm | 6:39:56 pm | 11h 21m 30s | -2m 50s | 12:32:24 pm | 40.6° | 5:52:14 am | 7:12:33 pm | 5:19:31 am | 7:45:17 pm | 12h 39m 38s | 🌑 (0.3%) |
| Sun, Oct 11 | 6:25:59 am | 6:52:47 am | 6:11:29 pm | 6:38:18 pm | 11h 18m 42s | -2m 48s | 12:32:08 pm | 40.2° | 5:53:21 am | 7:10:55 pm | 5:20:40 am | 7:43:37 pm | 12h 42m 28s | 🌒 (2%) |
| Mon, Oct 12 | 6:27:07 am | 6:53:57 am | 6:09:50 pm | 6:36:40 pm | 11h 15m 53s | -2m 49s | 12:31:53 pm | 39.8° | 5:54:28 am | 7:09:18 pm | 5:21:48 am | 7:41:59 pm | 12h 45m 16s | 🌒 (7%) |
| Tue, Oct 13 | 6:28:14 am | 6:55:06 am | 6:08:11 pm | 6:35:03 pm | 11h 13m 5s | -2m 48s | 12:31:39 pm | 39.4° | 5:55:35 am | 7:07:42 pm | 5:22:56 am | 7:40:22 pm | 12h 48m 5s | 🌒 (12%) |
| Wed, Oct 14 | 6:29:22 am | 6:56:16 am | 6:06:33 pm | 6:33:27 pm | 11h 10m 17s | -2m 48s | 12:31:25 pm | 39.1° | 5:56:42 am | 7:06:07 pm | 5:24:04 am | 7:38:46 pm | 12h 50m 53s | 🌒 (19%) |
| Thu, Oct 15 | 6:30:30 am | 6:57:26 am | 6:04:56 pm | 6:31:52 pm | 11h 7m 30s | -2m 47s | 12:31:11 pm | 38.7° | 5:57:50 am | 7:04:33 pm | 5:25:11 am | 7:37:11 pm | 12h 53m 41s | 🌒 (27%) |
| Fri, Oct 16 | 6:31:39 am | 6:58:37 am | 6:03:20 pm | 6:30:18 pm | 11h 4m 43s | -2m 47s | 12:30:58 pm | 38.3° | 5:58:57 am | 7:03:00 pm | 5:26:19 am | 7:35:38 pm | 12h 56m 27s | 🌒 (36%) |
| Sat, Oct 17 | 6:32:47 am | 6:59:47 am | 6:01:45 pm | 6:28:45 pm | 11h 1m 58s | -2m 45s | 12:30:46 pm | 38° | 6:00:04 am | 7:01:28 pm | 5:27:27 am | 7:34:06 pm | 12h 59m 13s | 🌒 (45%) |
| Sun, Oct 18 | 6:33:56 am | 7:00:58 am | 6:00:10 pm | 6:27:13 pm | 10h 59m 12s | -2m 46s | 12:30:34 pm | 37.6° | 6:01:11 am | 6:59:58 pm | 5:28:34 am | 7:32:35 pm | 13h 2m 0s | 🌓 (55%) |
| Mon, Oct 19 | 6:35:05 am | 7:02:10 am | 5:58:37 pm | 6:25:42 pm | 10h 56m 27s | -2m 45s | 12:30:23 pm | 37.2° | 6:02:18 am | 6:58:28 pm | 5:29:41 am | 7:31:05 pm | 13h 4m 44s | 🌔 (64%) |
| Tue, Oct 20 | 6:36:14 am | 7:03:21 am | 5:57:04 pm | 6:24:12 pm | 10h 53m 43s | -2m 44s | 12:30:13 pm | 36.9° | 6:03:26 am | 6:57:00 pm | 5:30:49 am | 7:29:37 pm | 13h 7m 29s | 🌔 (73%) |
| Wed, Oct 21 | 6:37:23 am | 7:04:33 am | 5:55:33 pm | 6:22:43 pm | 10h 51m 0s | -2m 43s | 12:30:03 pm | 36.5° | 6:04:33 am | 6:55:33 pm | 5:31:56 am | 7:28:10 pm | 13h 10m 13s | 🌔 (82%) |
| Thu, Oct 22 | 6:38:32 am | 7:05:46 am | 5:54:02 pm | 6:21:15 pm | 10h 48m 16s | -2m 44s | 12:29:54 pm | 36.2° | 6:05:41 am | 6:54:07 pm | 5:33:03 am | 7:26:45 pm | 13h 12m 56s | 🌔 (89%) |
| Fri, Oct 23 | 6:39:42 am | 7:06:58 am | 5:52:32 pm | 6:19:49 pm | 10h 45m 34s | -2m 42s | 12:29:45 pm | 35.8° | 6:06:48 am | 6:52:43 pm | 5:34:10 am | 7:25:21 pm | 13h 15m 39s | 🌔 (95%) |
| Sat, Oct 24 | 6:40:52 am | 7:08:11 am | 5:51:04 pm | 6:18:23 pm | 10h 42m 53s | -2m 41s | 12:29:38 pm | 35.5° | 6:07:56 am | 6:51:19 pm | 5:35:17 am | 7:23:58 pm | 13h 18m 20s | 🌔 (99%) |
| Sun, Oct 25 | 6:42:02 am | 7:09:24 am | 5:49:37 pm | 6:16:59 pm | 10h 40m 13s | -2m 40s | 12:29:31 pm | 35.1° | 6:09:03 am | 6:49:58 pm | 5:36:24 am | 7:22:37 pm | 13h 21m 1s | 🌔 (99.9%) |
| Mon, Oct 26 | 6:43:12 am | 7:10:38 am | 5:48:11 pm | 6:15:36 pm | 10h 37m 33s | -2m 40s | 12:29:24 pm | 34.8° | 6:10:11 am | 6:48:37 pm | 5:37:31 am | 7:21:18 pm | 13h 23m 40s | 🌕 (99%) |
| Tue, Oct 27 | 6:44:22 am | 7:11:51 am | 5:46:46 pm | 6:14:15 pm | 10h 34m 55s | -2m 38s | 12:29:19 pm | 34.5° | 6:11:19 am | 6:47:18 pm | 5:38:37 am | 7:20:00 pm | 13h 26m 19s | 🌖 (95%) |
| Wed, Oct 28 | 6:45:33 am | 7:13:05 am | 5:45:22 pm | 6:12:55 pm | 10h 32m 17s | -2m 38s | 12:29:14 pm | 34.1° | 6:12:27 am | 6:46:01 pm | 5:39:44 am | 7:18:44 pm | 13h 28m 57s | 🌖 (88%) |
| Thu, Oct 29 | 6:46:43 am | 7:14:19 am | 5:44:00 pm | 6:11:36 pm | 10h 29m 41s | -2m 36s | 12:29:10 pm | 33.8° | 6:13:35 am | 6:44:45 pm | 5:40:51 am | 7:17:29 pm | 13h 31m 34s | 🌖 (79%) |
| Fri, Oct 30 | 6:47:54 am | 7:15:34 am | 5:42:39 pm | 6:10:19 pm | 10h 27m 5s | -2m 36s | 12:29:06 pm | 33.5° | 6:14:42 am | 6:43:30 pm | 5:41:57 am | 7:16:16 pm | 13h 34m 9s | 🌖 (69%) |
| Sat, Oct 31 | 6:49:05 am | 7:16:48 am | 5:41:19 pm | 6:09:03 pm | 10h 24m 31s | -2m 34s | 12:29:04 pm | 33.1° | 6:15:50 am | 6:42:17 pm | 5:43:04 am | 7:15:04 pm | 13h 36m 44s | 🌖 (58%) |
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Sunrise and Sunset photos in Chelmsford, MA
Enjoy this beautiful gallery of images of the sunset and sunrise at Chelmsford, MA. All images provided by our fantastic community of photographers!
Year distribution of sunrise and sunset times in Chelmsford, MA - 2026
The following graph shows sunrise and sunset times in Chelmsford, MA for every day of the year. There are two jumps in the graph that represent the hour change for Daylight Saving Time (DST) in Chelmsford, MA.
Daylight Dawn & dusk (civil twilight) Night Solar noon · Vertical steps in the curves = DST clock change
Earliest and latest sunrise and sunset in Chelmsford, MA
In Chelmsford, MA, the earliest sunrise of 2026 is on June 14 at 5:05 am, while the latest sunrise is on October 31 at 7:16 am. The earliest sunset is on December 8 at 4:13 pm, and the latest sunset is on June 26 at 8:29 pm.
Chelmsford, MA gets 6h 15m more daylight on the longest day than on the shortest one (15h 22m versus 9h 06m). Averaged over the whole year, a day lasts 12h 16m.
Chelmsford, MA Analemma
Due to Earth's tilted axis and slightly elliptical orbit, the Sun is never seen in the same position at noon in Chelmsford. Throughout the year, it slowly traces this figure-eight:
Move along the curve to read the Sun's altitude and azimuth for any day of the year in Chelmsford.
Over the year, the 12:00 Sun swings between just 23.9° above the horizon (around Dec 21) and 70.7° (around Jun 21) in Chelmsford. The smaller loop sits at the top, the signature of a Northern Hemisphere analemma.
Detailed Analemma Chart
The technical chart below plots one dot per day, labels the first day of each month, marks the solstices, equinoxes, perihelion and aphelion, and draws the noon altitude of the equinoxes (90° minus your latitude) together with its ±23.4° seasonal limits.
Why does the figure look wider here than in the sky view above?
Both draw the same data, but with different conventions. The sky view uses the same scale on both axes, so it shows the analemma with its true proportions, as a camera would capture it: about 47° tall and only a few degrees wide. This chart, like most technical analemma diagrams, stretches each axis independently to fill the plot, expanding the narrow azimuth range several times so its day-to-day variation can actually be read. Also, azimuth is not sky distance: near the zenith, one degree of azimuth spans much less than one degree across the sky, which further widens the figure in this representation.
Places near Chelmsford, MA
These nearby towns and cities have almost the same sunrise and sunset times as Chelmsford, MA — the difference is only seconds to a couple of minutes. Select any place to see its own sun calendar:
Lowell 3 miWestford 4 miCarlisle 5 miBillerica 6 miDracut 6 miTyngsborough 6 miTewksbury 7 miDunstable 8 mi