What time is sunrise and sunset in Cos Cob?

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

Today

Thursday, October 15, 2026

Sunrise

7:05 AM

101° EDawn 6:37 AM

Sunrise in Cos Cob was at 7:05:29 AM EDT (3h 7m ago).

Sunset

6:14 PM

259° WDusk 6:41 PM

Sunset in Cos Cob will be at 6:14:10 PM EDT (in 8h 1m).

Now

7:05a6:14p

12a3a6a9a12p3p6p9p12a

Daylight now · Golden hour at 5:36 PM

Daylight: 11h 08m
Darkness: 9h 49m
Solar noon: 12:40 PM
Sun altitude: 29.9°
Sun direction: 137° SE

How long golden hour and blue hour last

Tomorrow

Friday, October 16, 2026

Sunrise

7:06 AM

101° EDawn 6:38 AM

Sunrise in Cos Cob will be at 7:06:35 AM EDT (in 20h 54m).

Sunset

6:12 PM

259° WSWDusk 6:40 PM

Sunset in Cos Cob will be at 6:12:39 PM EDT (in 32h).

Moon tonight

Phase, moonrise and moonset in Cos Cob

Waxing Crescent

23% illuminated

Moonrise: 12:21 PM
Moonset: 8:59 PM

Calendar

Eastern Time · select a day to expand

	Date	Dawn	Sunrise	Solar noon	Sunset	Dusk	Length
	1 Thu	6:23 AM	6:50 AM	12:44 PM	6:36 PM	7:04 PM	11h 46m 06s
	2 Fri	6:24 AM	6:51 AM	12:43 PM	6:35 PM	7:02 PM	11h 43m 24s
	3 Sat	6:25 AM	6:52 AM	12:43 PM	6:33 PM	7:00 PM	11h 40m 42s
	4 Sun	6:26 AM	6:53 AM	12:43 PM	6:31 PM	6:59 PM	11h 38m 00s
	5 Mon	6:27 AM	6:54 AM	12:42 PM	6:30 PM	6:57 PM	11h 35m 19s
	6 Tue	6:28 AM	6:55 AM	12:42 PM	6:28 PM	6:55 PM	11h 32m 37s
	7 Wed	6:29 AM	6:56 AM	12:42 PM	6:26 PM	6:54 PM	11h 29m 57s
	8 Thu	6:30 AM	6:57 AM	12:41 PM	6:25 PM	6:52 PM	11h 27m 16s
	9 Fri	6:31 AM	6:59 AM	12:41 PM	6:23 PM	6:51 PM	11h 24m 35s
	10 Sat	6:32 AM	7:00 AM	12:41 PM	6:22 PM	6:49 PM	11h 21m 55s
	11 Sun	6:33 AM	7:01 AM	12:41 PM	6:20 PM	6:47 PM	11h 19m 16s
	12 Mon	6:34 AM	7:02 AM	12:40 PM	6:18 PM	6:46 PM	11h 16m 36s
	13 Tue	6:35 AM	7:03 AM	12:40 PM	6:17 PM	6:44 PM	11h 13m 57s
	14 Wed	6:36 AM	7:04 AM	12:40 PM	6:15 PM	6:43 PM	11h 11m 19s
	15 Thu	6:37 AM	7:05 AM	12:40 PM	6:14 PM	6:41 PM	11h 08m 41s
Thursday, October 15 11h 08m 41s of daylight·−2m 38s vs. yesterday·twilight 6:37 AM – 6:41 PM Time 10:13 AM Altitude 29.9° Heading 137° SE Light Daylight 10:13 AM, Daylight, altitude 29.9 degrees
	16 Fri	6:38 AM	7:06 AM	12:39 PM	6:12 PM	6:40 PM	11h 06m 03s
	17 Sat	6:39 AM	7:07 AM	12:39 PM	6:11 PM	6:38 PM	11h 03m 26s
	18 Sun	6:40 AM	7:08 AM	12:39 PM	6:09 PM	6:37 PM	11h 00m 50s
	19 Mon	6:42 AM	7:09 AM	12:39 PM	6:08 PM	6:36 PM	10h 58m 14s
	20 Tue	6:43 AM	7:11 AM	12:39 PM	6:06 PM	6:34 PM	10h 55m 39s
	21 Wed	6:44 AM	7:12 AM	12:39 PM	6:05 PM	6:33 PM	10h 53m 04s
	22 Thu	6:45 AM	7:13 AM	12:38 PM	6:03 PM	6:31 PM	10h 50m 30s
	23 Fri	6:46 AM	7:14 AM	12:38 PM	6:02 PM	6:30 PM	10h 47m 57s
	24 Sat	6:47 AM	7:15 AM	12:38 PM	6:01 PM	6:29 PM	10h 45m 25s
	25 Sun	6:48 AM	7:16 AM	12:38 PM	5:59 PM	6:27 PM	10h 42m 53s
	26 Mon	6:49 AM	7:17 AM	12:38 PM	5:58 PM	6:26 PM	10h 40m 23s
	27 Tue	6:50 AM	7:19 AM	12:38 PM	5:56 PM	6:25 PM	10h 37m 53s
	28 Wed	6:51 AM	7:20 AM	12:38 PM	5:55 PM	6:23 PM	10h 35m 24s
	29 Thu	6:52 AM	7:21 AM	12:38 PM	5:54 PM	6:22 PM	10h 32m 57s
	30 Fri	6:54 AM	7:22 AM	12:38 PM	5:53 PM	6:21 PM	10h 30m 30s
	31 Sat	6:55 AM	7:23 AM	12:38 PM	5:51 PM	6:20 PM	10h 28m 04s

Photos

Sunrise and sunset photos of Cos Cob from Flickr.

FAQ

Frequently asked questions about sunrise and sunset in Cos Cob, United States

What time does the sun rise in Cos Cob today?: Sunrise in Cos Cob today (Thursday, October 15, 2026) is at 7:05 AM. The sun comes up in the E.
What time does the sun set in Cos Cob today?: Sunset today is at 6:14 PM, after 11h 08m of daylight.
When does it get dark in Cos Cob tonight?: Civil twilight ends at 6:41 PM. After that you need artificial light for most things outdoors. Astronomical twilight ends at 7:45 PM, which is when night starts by the standard definition.How long after sunset it gets dark
When is the longest day in Cos Cob, United States?: The longest day of 2026 in Cos Cob is Sunday, June 21, 2026, the summer solstice, with 15h 07m of daylight. In 2027 the summer solstice falls on June 21, 2027.More on the summer solstice
When is the shortest day in Cos Cob, United States?: The shortest day of 2026 in Cos Cob, Connecticut is Monday, December 21, 2026, the winter solstice, with 9h 13m of daylight. In 2027 the winter solstice lands on December 21, 2027.
How much more daylight does Cos Cob get in summer than in winter?: Cos Cob gets 5h 54m more daylight on its longest day than on its shortest (15h 07m against 9h 13m). Averaged across the year, a day here has 12h 12m of daylight.
When is the earliest sunrise in Cos Cob?: The earliest sunrise of 2026 in Cos Cob is on Sunday, June 14, 2026, when the sun comes up at 5:21 AM.
When is the latest sunset in Cos Cob?: The latest sunset is on Saturday, June 27, 2026 at 8:30 PM.
When is the earliest sunset in Cos Cob?: The earliest sunset of the year is on Tuesday, December 8, 2026, with the sun down by 4:25 PM.Why it comes before the shortest day
When is the latest sunrise in Cos Cob?: The latest sunrise is on Saturday, October 31, 2026 at 7:24 AM.
Does Cos Cob observe daylight saving time?: Yes. Cos Cob 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 Cos Cob

Cities near Cos Cob

National parks & monuments nearby

Fall color spots nearby, from Fall Photo Guide

Developers: get this data programmatically with the free JSON API.

GET https://api.sunrisesunset.io/json?lat=41.03343&lng=-73.59957