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What time is sunrise and sunset in Jefferson County?

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

Today

Sunrise
7:12 AM
104° ESEDawn 6:45 AM

Sunrise in Jefferson County was at 7:12:58 AM MDT (4h 41m ago).

Sunset
6:16 PM
256° WSWDusk 6:43 PM

Sunset in Jefferson County will be at 6:16:35 PM MDT (in 6h 22m).

Now
12a6a12p6p12a

Daylight now · Golden hour at 5:30 PM

Daylight
11h 03m
Darkness
10h 13m
Solar noon
12:45 PM
Sun altitude
36.8°
Sun direction
164° SSE
How long golden hour and blue hour last

Tomorrow

Sunrise
7:14 AM
104° ESEDawn 6:46 AM

Sunrise in Jefferson County will be at 7:14:02 AM MDT (in 19h 20m).

Sunset
6:15 PM
256° WSWDusk 6:42 PM

Sunset in Jefferson County will be at 6:15:18 PM MDT (in 30h 21m).

Moon tonight

Phase, moonrise and moonset in Jefferson County

Full Moon
100% illuminated
Moonrise
5:35 PM
Moonset
6:49 AM

Calendar

Mountain Time · select a day to expand

DateSunriseSunsetLength
1 Thu6:48 AM6:51 PM12h 03m
2 Fri6:49 AM6:50 PM12h 00m
3 Sat6:50 AM6:48 PM11h 57m
4 Sun6:51 AM6:47 PM11h 55m
5 Mon6:52 AM6:45 PM11h 52m
6 Tue6:53 AM6:43 PM11h 50m
7 Wed6:54 AM6:42 PM11h 47m
8 Thu6:55 AM6:40 PM11h 45m
9 Fri6:56 AM6:39 PM11h 42m
10 Sat6:57 AM6:37 PM11h 40m
11 Sun6:58 AM6:36 PM11h 37m
12 Mon6:59 AM6:34 PM11h 35m
13 Tue7:00 AM6:33 PM11h 32m
14 Wed7:01 AM6:31 PM11h 30m
15 Thu7:02 AM6:30 PM11h 27m
16 Fri7:03 AM6:28 PM11h 25m
17 Sat7:04 AM6:27 PM11h 22m
18 Sun7:05 AM6:26 PM11h 20m
19 Mon7:06 AM6:24 PM11h 17m
20 Tue7:07 AM6:23 PM11h 15m
21 Wed7:08 AM6:21 PM11h 13m
22 Thu7:09 AM6:20 PM11h 10m
23 Fri7:10 AM6:19 PM11h 08m
24 Sat7:11 AM6:17 PM11h 05m
25 Sun7:12 AM6:16 PM11h 03m
Sunday, October 25
11h 03m 36s of daylight·−2m 22s vs. yesterday·twilight 6:45 AM – 6:43 PM
12a3a6a9a12p3p6p9p12a7:12 AM12:45 PM6:16 PMhorizon
Time
11:54 AM
Altitude
36.8°
Heading
164° SSE
Light
Daylight

11:54 AM, Daylight, altitude 36.8 degrees

26 Mon7:14 AM6:15 PM11h 01m
27 Tue7:15 AM6:14 PM10h 58m
28 Wed7:16 AM6:12 PM10h 56m
29 Thu7:17 AM6:11 PM10h 54m
30 Fri7:18 AM6:10 PM10h 52m
31 Sat7:19 AM6:09 PM10h 49m

Photos

Sunrise and sunset photos of Jefferson County from Flickr.

More on Flickr

FAQ

Frequently asked questions about sunrise and sunset in Jefferson County, United States

What time does the sun rise in Jefferson County today?
Sunrise in Jefferson County today (Sunday, October 25, 2026) is at 7:12 AM. The sun comes up in the ESE.
What time does the sun set in Jefferson County today?
Sunset today is at 6:16 PM, after 11h 03m of daylight.
When does it get dark in Jefferson County tonight?
Civil twilight ends at 6:43 PM. After that you need artificial light for most things outdoors. Astronomical twilight ends at 7:46 PM, which is when night starts by the standard definition.How long after sunset it gets dark
When is the longest day in Jefferson County, United States?
The longest day of 2026 in Jefferson County is Sunday, June 21, 2026, the summer solstice, with 14h 58m of daylight. In 2027 the summer solstice falls on June 21, 2027.More on the summer solstice
When is the shortest day in Jefferson County, United States?
The shortest day of 2026 in Jefferson County, Colorado is Monday, December 21, 2026, the winter solstice, with 9h 22m of daylight. In 2027 the winter solstice lands on December 21, 2027.
How much more daylight does Jefferson County get in summer than in winter?
Jefferson County gets 5h 36m more daylight on its longest day than on its shortest (14h 58m against 9h 22m). Averaged across the year, a day here has 12h 12m of daylight.
When is the earliest sunrise in Jefferson County?
The earliest sunrise of 2026 in Jefferson County is on Saturday, June 13, 2026, when the sun comes up at 5:32 AM.
When is the latest sunset in Jefferson County?
The latest sunset is on Saturday, June 27, 2026 at 8:32 PM.
When is the earliest sunset in Jefferson County?
The earliest sunset of the year is on Monday, December 7, 2026, with the sun down by 4:36 PM.Why it comes before the shortest day
When is the latest sunrise in Jefferson County?
The latest sunrise is on Saturday, October 31, 2026 at 7:28 AM.
Does Jefferson County observe daylight saving time?
Yes. Jefferson County uses Mountain 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 Jefferson County

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GET https://api.sunrisesunset.io/json?lat=39.58642&lng=-105.25047