Sunrise and sunset times in Groton, MA

Check out today's and tomorrow's sunrise and sunset times in Groton, MA, United States, as well as the whole calendar for May 2026.

Today

May 11, 2026 . Current time: 2:49:01 pm

Sun rising over the horizon

First light at 4:56:07 am

Sunrise time: 5:26:28 am

Sun setting behind the horizon

Sunset time: 7:58:53 pm

Last light at 8:29:14 pm

Day length: 14 hours, 32 minutes

5 hours, 9 minutes left for today's sunset in Groton

Moonset icon Moon set on May 11 at 02:02 PMMoonrise icon Moon will rise on May 12 at 02:59 AMMoon phase: 🌘 Waning Crescent (31%)

Tomorrow

May 12, 2026

Sun rising over the horizon

First light at 4:54:54 am

Sunrise time: 5:25:22 am

Sun setting behind the horizon

Sunset time: 7:59:57 pm

Last light at 8:30:26 pm

Day length: 14 hours, 34 minutes

Tomorrow will be approximately 2 minutes longer than today in Groton

Moonrise icon Moon will rise on May 12 at 02:59 AMMoonset icon Moon will set on May 12 at 03:12 PMMoon phase: 🌘 Waning Crescent (18%)
Map of Groton, Massachusetts

Shortest day in Groton, MA

The shortest day of the year will be in 8 months, during the winter solstice on December 21, 2026, with a daylight length of 9 hours and 6 minutes.

Longest day in Groton, MA

The longest day of the year will be in 1 month and 9 days, during the summer solstice on June 21, 2026, with a daylight length of 15 hours and 22 minutes.
Why Do We Have Solar Eclipses?

Why Do We Have Solar Eclipses?

Why the Shortest Day Is Not the Day With the Earliest Sunset or Latest Sunrise

Why the Shortest Day Is Not the Day With the Earliest Sunset or Latest Sunrise

How Are Sunsets in Other Planets in Our Solar System?

How Are Sunsets in Other Planets in Our Solar System?

When Is the Shortest Day of the Year?

When Is the Shortest Day of the Year?

How Long After Sunset Does It Get Dark?

How Long After Sunset Does It Get Dark?

What Is the Difference Between Golden Hour and Alpenglow?

What Is the Difference Between Golden Hour and Alpenglow?


May 2026 - Groton, 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 May in Groton.

The day length increases by 59 minutes over the course of May 2026 in Groton, MA - from 14 hours, 8 minutes on the first day to 15 hours, 8 minutes on the last day.

  
Day Twilight Start Sunrise Sunset Twilight End Day Length Day Length Variation Solar Noon Info 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 Info Calculated form this day's sunset to the next day's sunrise. Moon phase
Fri, May 1 5:09:39 am 5:38:57 am 7:47:48 pm 8:17:06 pm 14h 8m 51s 14h 8m 51s 12:43:22 pm 57.8° 4:31:46 am 8:54:59 pm 3:50:15 am 9:36:30 pm 9h 49m 48s 🌕 (100%)
Sat, May 2 5:08:12 am 5:37:36 am 7:48:55 pm 8:18:19 pm 14h 11m 19s 2m 28s 12:43:16 pm 58.1° 4:30:08 am 8:56:24 pm 3:48:19 am 9:38:13 pm 9h 47m 21s 🌖 (100%)
Sun, May 3 5:06:46 am 5:36:16 am 7:50:03 pm 8:19:33 pm 14h 13m 47s 2m 28s 12:43:10 pm 58.4° 4:28:31 am 8:57:49 pm 3:46:23 am 9:39:56 pm 9h 44m 55s 🌖 (98%)
Mon, May 4 5:05:21 am 5:34:58 am 7:51:10 pm 8:20:47 pm 14h 16m 12s 2m 25s 12:43:04 pm 58.7° 4:26:55 am 8:59:13 pm 3:44:29 am 9:41:39 pm 9h 42m 31s 🌖 (95%)
Tue, May 5 5:03:58 am 5:33:41 am 7:52:17 pm 8:22:00 pm 14h 18m 36s 2m 24s 12:42:59 pm 59° 4:25:20 am 9:00:38 pm 3:42:35 am 9:43:23 pm 9h 40m 8s 🌖 (89%)
Wed, May 6 5:02:36 am 5:32:25 am 7:53:24 pm 8:23:13 pm 14h 20m 59s 2m 23s 12:42:54 pm 59.3° 4:23:46 am 9:02:03 pm 3:40:42 am 9:45:07 pm 9h 37m 47s 🌖 (83%)
Thu, May 7 5:01:15 am 5:31:11 am 7:54:30 pm 8:24:26 pm 14h 23m 19s 2m 20s 12:42:51 pm 59.6° 4:22:14 am 9:03:27 pm 3:38:50 am 9:46:51 pm 9h 35m 28s 🌖 (75%)
Fri, May 8 4:59:56 am 5:29:58 am 7:55:36 pm 8:25:38 pm 14h 25m 38s 2m 19s 12:42:47 pm 59.8° 4:20:43 am 9:04:51 pm 3:36:59 am 9:48:35 pm 9h 33m 11s 🌖 (67%)
Sat, May 9 4:58:38 am 5:28:47 am 7:56:42 pm 8:26:51 pm 14h 27m 55s 2m 17s 12:42:44 pm 60.1° 4:19:14 am 9:06:15 pm 3:35:10 am 9:50:19 pm 9h 30m 55s 🌖 (57%)
Sun, May 10 4:57:22 am 5:27:37 am 7:57:48 pm 8:28:03 pm 14h 30m 11s 2m 16s 12:42:42 pm 60.4° 4:17:45 am 9:07:39 pm 3:33:21 am 9:52:03 pm 9h 28m 40s 🌗 (47%)
Mon, May 11 4:56:07 am 5:26:28 am 7:58:53 pm 8:29:14 pm 14h 32m 25s 2m 14s 12:42:41 pm 60.6° 4:16:19 am 9:09:02 pm 3:31:34 am 9:53:48 pm 9h 26m 29s 🌘 (37%)
Tue, May 12 4:54:54 am 5:25:22 am 7:59:57 pm 8:30:26 pm 14h 34m 35s 2m 10s 12:42:40 pm 60.9° 4:14:53 am 9:10:26 pm 3:29:48 am 9:55:31 pm 9h 24m 19s 🌘 (27%)
Wed, May 13 4:53:42 am 5:24:16 am 8:01:02 pm 8:31:36 pm 14h 36m 46s 2m 11s 12:42:39 pm 61.1° 4:13:30 am 9:11:48 pm 3:28:03 am 9:57:15 pm 9h 22m 11s 🌘 (18%)
Thu, May 14 4:52:32 am 5:23:13 am 8:02:05 pm 8:32:46 pm 14h 38m 52s 2m 6s 12:42:39 pm 61.4° 4:12:08 am 9:13:10 pm 3:26:20 am 9:58:59 pm 9h 20m 6s 🌘 (10%)
Fri, May 15 4:51:23 am 5:22:11 am 8:03:08 pm 8:33:56 pm 14h 40m 57s 2m 5s 12:42:40 pm 61.6° 4:10:48 am 9:14:32 pm 3:24:38 am 10:00:42 pm 9h 18m 3s 🌘 (4%)
Sat, May 16 4:50:17 am 5:21:11 am 8:04:11 pm 8:35:05 pm 14h 43m 0s 2m 3s 12:42:41 pm 61.8° 4:09:29 am 9:15:53 pm 3:22:58 am 10:02:24 pm 9h 16m 2s 🌘 (1%)
Sun, May 17 4:49:12 am 5:20:13 am 8:05:13 pm 8:36:13 pm 14h 45m 0s 2m 0s 12:42:43 pm 62.1° 4:08:12 am 9:17:13 pm 3:21:19 am 10:04:06 pm 9h 14m 3s 🌑 (0%)
Mon, May 18 4:48:09 am 5:19:16 am 8:06:14 pm 8:37:21 pm 14h 46m 58s 1m 58s 12:42:45 pm 62.3° 4:06:57 am 9:18:33 pm 3:19:42 am 10:05:48 pm 9h 12m 7s 🌒 (3%)
Tue, May 19 4:47:08 am 5:18:21 am 8:07:15 pm 8:38:28 pm 14h 48m 54s 1m 56s 12:42:48 pm 62.5° 4:05:44 am 9:19:52 pm 3:18:07 am 10:07:28 pm 9h 10m 13s 🌒 (8%)
Wed, May 20 4:46:08 am 5:17:28 am 8:08:15 pm 8:39:34 pm 14h 50m 47s 1m 53s 12:42:51 pm 62.7° 4:04:33 am 9:21:10 pm 3:16:34 am 10:09:08 pm 9h 8m 22s 🌒 (16%)
Thu, May 21 4:45:11 am 5:16:37 am 8:09:14 pm 8:40:40 pm 14h 52m 37s 1m 50s 12:42:55 pm 62.9° 4:03:24 am 9:22:27 pm 3:15:03 am 10:10:47 pm 9h 6m 34s 🌒 (25%)
Fri, May 22 4:44:15 am 5:15:48 am 8:10:12 pm 8:41:44 pm 14h 54m 24s 1m 47s 12:43:00 pm 63.1° 4:02:17 am 9:23:43 pm 3:13:34 am 10:12:25 pm 9h 4m 48s 🌒 (36%)
Sat, May 23 4:43:22 am 5:15:00 am 8:11:09 pm 8:42:48 pm 14h 56m 9s 1m 45s 12:43:05 pm 63.3° 4:01:12 am 9:24:58 pm 3:12:07 am 10:14:02 pm 9h 3m 6s 🌓 (47%)
Sun, May 24 4:42:31 am 5:14:15 am 8:12:06 pm 8:43:50 pm 14h 57m 51s 1m 42s 12:43:10 pm 63.5° 4:00:09 am 9:26:12 pm 3:10:43 am 10:15:38 pm 9h 1m 25s 🌔 (57%)
Mon, May 25 4:41:41 am 5:13:31 am 8:13:01 pm 8:44:52 pm 14h 59m 30s 1m 39s 12:43:16 pm 63.6° 3:59:08 am 9:27:24 pm 3:09:20 am 10:17:12 pm 8h 59m 49s 🌔 (67%)
Tue, May 26 4:40:54 am 5:12:50 am 8:13:56 pm 8:45:52 pm 15h 1m 6s 1m 36s 12:43:23 pm 63.8° 3:58:10 am 9:28:36 pm 3:08:01 am 10:18:45 pm 8h 58m 14s 🌔 (77%)
Wed, May 27 4:40:09 am 5:12:10 am 8:14:49 pm 8:46:51 pm 15h 2m 39s 1m 33s 12:43:30 pm 64° 3:57:14 am 9:29:46 pm 3:06:43 am 10:20:16 pm 8h 56m 44s 🌔 (84%)
Thu, May 28 4:39:25 am 5:11:33 am 8:15:42 pm 8:47:49 pm 15h 4m 9s 1m 30s 12:43:37 pm 64.1° 3:56:20 am 9:30:54 pm 3:05:29 am 10:21:46 pm 8h 55m 15s 🌔 (91%)
Fri, May 29 4:38:45 am 5:10:57 am 8:16:33 pm 8:48:46 pm 15h 5m 36s 1m 27s 12:43:45 pm 64.3° 3:55:29 am 9:32:01 pm 3:04:17 am 10:23:14 pm 8h 53m 51s 🌔 (96%)
Sat, May 30 4:38:06 am 5:10:24 am 8:17:23 pm 8:49:41 pm 15h 6m 59s 1m 23s 12:43:53 pm 64.5° 3:54:40 am 9:33:07 pm 3:03:07 am 10:24:40 pm 8h 52m 29s 🌔 (99%)
Sun, May 31 4:37:29 am 5:09:52 am 8:18:12 pm 8:50:35 pm 15h 8m 20s 1m 21s 12:44:02 pm 64.6° 3:53:54 am 9:34:10 pm 3:02:01 am 10:26:03 pm 8h 51m 11s 🌕 (100%)

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Year distribution of sunrise and sunset times in Groton, MA - 2026

The followin graph shows sunrise and sunset times in Groton, 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 Groton, MA.


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