Home   Sun, Moon & Space   USA   Groton
Flag for USA

Groton, CT, USA — Sunrise, Sunset, and Moon Times for Today

Moon: 85.4%
Waning Gibbous
Current Time: Dec 8, 2025 at 12:01:46 am
Sunrise Today: 7:01 am 120° Southeast
Sunset Today: 4:18 pm 240° Southwest
Moonrise Today: 8:31 pm 64° Northeast
Moonset Today: 10:39 am 299° Northwest
Daylight Hours: 9 hours, 17 minutes (-54s)
Location of GrotonLocation

Today's Sun Position in Groton

Time:12:01 am
Altitude:-70.9°
Direction:15° N
Phase:Night

Day length today: 9h 16m 56s (Dec 8, 2025)

54 seconds shorter than yesterday (Dec 7, 2025)

5 minutes, 42 seconds longer than winter solstice (Dec 21, 2024)

5 hours, 53 minutes shorter than summer solstice (Jun 20, 2025)

Night, Twilight, and Daylight Times in Groton Today

12 am
2 am
4 am
6 am
8 am
10 am
12 pm
2 pm
4 pm
6 pm
8 pm
10 pm
Night12:00 am – 5:22 am
Astro. Twilight5:22 am – 5:56 am
Nautical Twilight5:56 am – 6:30 am
Civil Twilight6:30 am – 7:01 am
Daylight7:01 am – 4:18 pm
Civil Twilight4:18 pm – 4:49 pm
Nautical Twilight4:49 pm – 5:24 pm
Astro. Twilight5:24 pm – 5:58 pm
Night5:58 pm – 11:59 pm

Sun in Groton - Next 7 Days

Scroll right to see more
2025Sunrise/SunsetDaylengthSolar Noon
DecSunriseSunsetLengthDiff.TimeMil. mi
Dec 87:01 am4:18 pm9:16:56−0:5411:40 am (25.9°)91.563
Dec 97:02 am4:18 pm9:16:06−0:5011:40 am (25.8°)91.552
Dec 107:03 am4:18 pm9:15:19−0:4611:41 am (25.7°)91.541
Dec 117:04 am4:18 pm9:14:37−0:4211:41 am (25.6°)91.531
Dec 127:05 am4:19 pm9:13:58−0:3811:42 am (25.6°)91.521
Dec 137:05 am4:19 pm9:13:23−0:3411:42 am (25.5°)91.512
Dec 147:06 am4:19 pm9:12:53−0:3011:43 am (25.4°)91.503
* All times are local time for Groton. They take into account refraction. Dates are based on the Gregorian calendar.

See full month's Sun


Today's Moon in Groton

Year 2025 Moon Phases

Moon in Groton - Next 7 days

Scroll right to see more
2025Moonrise/MoonsetMeridian Passing
DecMoonriseMoonsetMoonriseTimeDistance (mi)Illumination
Dec 8-10:39 am8:31 pm3:03 am(70.9°)230,07284.3%
Dec 9-11:09 am9:43 pm3:57 am(65.9°)234,08275.1%
Dec 10-11:34 am10:52 pm4:45 am(60.2°)238,18264.9%
Dec 11-11:55 am11:56 pm5:29 am(54.0°)242,04354.5%
Dec 12-12:15 pm-6:11 am(47.9°)245,44244.2%
Dec 1312:59 am12:34 pm-6:51 am(41.9°)248,21534.4%
Dec 142:01 am12:54 pm-7:32 am(36.3°)250,29425.4%
* All times are local time for Groton. They take into account refraction. Dates are based on the Gregorian calendar. Illumination is calculated at lunar noon.

See full month's Moon

Planets Visible in the Sky in Groton This Coming Night

 Planetrise/Planetset, Mon, Dec 8, 2025
PlanetRiseSetMeridianComment
MercuryMon 5:14 amMon 3:15 pmMon 10:14 amAverage visibility
VenusMon 6:27 amMon 3:52 pmMon 11:10 amSlightly difficult to see
MarsMon 7:44 amMon 4:46 pmMon 12:15 pmExtremely difficult to see
JupiterSun 6:59 pmMon 9:45 amMon 2:22 amPerfect visibility
SaturnMon 12:34 pmTue 12:10 amMon 6:22 pmGreat visibility
UranusMon 3:06 pmTue 5:37 amMon 10:21 pmAverage visibility
NeptuneMon 12:39 pmTue 12:33 amMon 6:36 pmDifficult to see
* All times are local time for Groton.

More about the planets visible in the night sky in Groton