Sunrise and Sunset in Boulder, United States

Today — Monday, June 15, 2026

Today the sun rises in Boulder at 05:32 and sets at 20:32, giving 15h 00m of daylight.

   Sunrise 
 05:32     58° ENE 
  Sunset 
 20:32     302° WNW 
  Day length 
15h 00m
    0 min longer than yesterday 
  Solar noon 
 13:02     Sun altitude: 73.3° 
 

Times shown in America/Denver · MDT · UTC-06:00

Sun Position

Sunrise 2026-06-15T05:32:58-06:00

Daylight 15h

Sunset 2026-06-15T20:32:52-06:00

Morning blue hour 05:00 05:13

Morning golden hour 05:36 06:13

Evening golden hour 19:52 20:29

Evening blue hour 20:52 21:05

Twilight phases

Mon, Jun 15, 2026

Twilight is the period before sunrise and after sunset when the sky is lit by scattered sunlight. There are three phases, each defined by how far the sun is below the horizon.

Sun alt / az 56.1° 71° ENE

Sky phase Daylight

Now 15:21

05:32 Sunrise

13:02 Solar noon

20:32 Sunset

Night Astronomical twilight Nautical twilight Civil twilight Golden hour Daylight

Sunrise 05:32
Solar noon 13:02
Sunset 20:32

Sun direction and altitude

The sun rises in the east and sets in the west — but the exact compass direction shifts with the seasons. At the solstices the difference can be 50° or more.

Sunrise: 58° ENE Sunset: 302° WNW Max altitude at noon: 73.3° above horizon

Sun path over the day

A polar view of the sun's path across the sky today as seen from Boulder. The outer ring is the horizon; the centre is directly overhead.

Sun bearings—

Boulder on the map · sun bearings today

Boulder, United States

Sunrise05:32
Sunset20:32
Daylight15h 00m
Sunrise bearing58°
Sunset bearing302°

Continent: Americas
Country: United States
City: Boulder
Population: 106.8K
Elevation: 1,624 m
Coordinates: 40.01°, -105.27°

Longest and shortest day of 2026

The earth's tilt makes the day length swing through the year. In Boulder these are the extremes for 2026.

Spring equinox

March 17, 2026

Day length ~ 12h 00m

Longest day

June 21, 2026

Day length 15h 01m

Autumn equinox

September 26, 2026

Day length ~ 12h 00m

Shortest day

December 22, 2026

Day length 9h 19m

Time zone and daylight saving

Time zone

America/Denver

UTC offset

UTC-06:00

Next clock change

November 1, 2026

backward · 1h

Yearly extremes

Earliest sunrise

June 14, 2026

05:32

Latest sunset

June 27, 2026

20:35

Day length throughout 2026

The length of the day across the entire year in Boulder. Solstices are the peaks and troughs; equinoxes are the 12-hour crossings.

Longest day Shortest day

Boulder sunrise calendar — June 2026

A full month of sunrise, sunset, twilight, and solar-noon times for Boulder. Scroll horizontally on mobile to see all columns.

1Mon

14h 49m

Sunrise

05:3560° ENE

Sunset

20:25

Civil dawn / Civil dusk

05:03·20:57

Diff

—

2Tue

14h 50m

Sunrise

05:3560° ENE

Sunset

20:25

Civil dawn / Civil dusk

05:03·20:57

Diff

+1m

3Wed

14h 51m

Sunrise

05:3460° ENE

Sunset

20:26

Civil dawn / Civil dusk

05:02·20:58

Diff

+1m

4Thu

14h 52m

Sunrise

05:3460° ENE

Sunset

20:27

Civil dawn / Civil dusk

05:02·20:59

Diff

+1m

5Fri

14h 53m

Sunrise

05:3459° ENE

Sunset

20:27

Civil dawn / Civil dusk

05:01·21:00

Diff

+1m

6Sat

14h 54m

Sunrise

05:3459° ENE

Sunset

20:28

Civil dawn / Civil dusk

05:01·21:00

Diff

+1m

7Sun

14h 55m

Sunrise

05:3359° ENE

Sunset

20:28

Civil dawn / Civil dusk

05:01·21:01

Diff

+1m

8Mon

14h 56m

Sunrise

05:3359° ENE

Sunset

20:29

Civil dawn / Civil dusk

05:01·21:02

Diff

+1m

9Tue

14h 57m

Sunrise

05:3359° ENE

Sunset

20:30

Civil dawn / Civil dusk

05:00·21:02

Diff

+1m

10Wed

14h 57m

Sunrise

05:3359° ENE

Sunset

20:30

Civil dawn / Civil dusk

05:00·21:03

Diff

+1m

11Thu

14h 58m

Sunrise

05:3359° ENE

Sunset

20:31

Civil dawn / Civil dusk

05:00·21:03

Diff

+1m

12Fri

14h 59m

Sunrise

05:3358° ENE

Sunset

20:31

Civil dawn / Civil dusk

05:00·21:04

Diff

+1m

13Sat

14h 59m

Sunrise

05:3258° ENE

Sunset

20:32

Civil dawn / Civil dusk

05:00·21:04

Diff

+1m

14Sun

15h 00m

Sunrise

05:3258° ENE

Sunset

20:32

Civil dawn / Civil dusk

05:00·21:05

Diff

15MonToday

15h 00m

Sunrise

05:3258° ENE

Sunset

20:32

Civil dawn / Civil dusk

05:00·21:05

Diff

16Tue

15h 00m

Sunrise

05:3358° ENE

Sunset

20:33

Civil dawn / Civil dusk

05:00·21:06

Diff

17Wed

15h 01m

Sunrise

05:3358° ENE

Sunset

20:33

Civil dawn / Civil dusk

05:00·21:06

Diff

18Thu

15h 01m

Sunrise

05:3358° ENE

Sunset

20:33

Civil dawn / Civil dusk

05:00·21:06

Diff

19Fri

15h 01m

Sunrise

05:3358° ENE

Sunset

20:34

Civil dawn / Civil dusk

05:00·21:07

Diff

20Sat

15h 01m

Sunrise

05:3358° ENE

Sunset

20:34

Civil dawn / Civil dusk

05:00·21:07

Diff

21SunNotable

15h 01m

Sunrise

05:3358° ENE

Sunset

20:34

Civil dawn / Civil dusk

05:00·21:07

Diff

22Mon

15h 01m

Sunrise

05:3358° ENE

Sunset

20:34

Civil dawn / Civil dusk

05:00·21:07

Diff

23Tue

15h 01m

Sunrise

05:3458° ENE

Sunset

20:34

Civil dawn / Civil dusk

05:01·21:07

Diff

24Wed

15h 01m

Sunrise

05:3458° ENE

Sunset

20:35

Civil dawn / Civil dusk

05:01·21:07

Diff

25Thu

15h 01m

Sunrise

05:3458° ENE

Sunset

20:35

Civil dawn / Civil dusk

05:01·21:08

Diff

26Fri

15h 00m

Sunrise

05:3558° ENE

Sunset

20:35

Civil dawn / Civil dusk

05:02·21:08

Diff

27Sat

15h 00m

Sunrise

05:3558° ENE

Sunset

20:35

Civil dawn / Civil dusk

05:02·21:08

Diff

28Sun

15h 00m

Sunrise

05:3558° ENE

Sunset

20:35

Civil dawn / Civil dusk

05:02·21:08

Diff

29Mon

14h 59m

Sunrise

05:3658° ENE

Sunset

20:35

Civil dawn / Civil dusk

05:03·21:08

Diff

30Tue

14h 59m

Sunrise

05:3658° ENE

Sunset

20:35

Civil dawn / Civil dusk

05:03·21:07

Diff

-1m

Date	Sunrise	Sunset	Daylight	Diff	Civil dawn	Civil dusk	Solar noon	Noon alt.	Rise dir.
1Mon	05:35	20:25	14h 49m	—	05:03	20:57	13:00	72.1°	60° ENE
2Tue	05:35	20:25	14h 50m	+1m	05:03	20:57	13:00	72.2°	60° ENE
3Wed	05:34	20:26	14h 51m	+1m	05:02	20:58	13:00	72.3°	60° ENE
4Thu	05:34	20:27	14h 52m	+1m	05:02	20:59	13:00	72.4°	60° ENE
5Fri	05:34	20:27	14h 53m	+1m	05:01	21:00	13:01	72.5°	59° ENE
6Sat	05:34	20:28	14h 54m	+1m	05:01	21:00	13:01	72.6°	59° ENE
7Sun	05:33	20:28	14h 55m	+1m	05:01	21:01	13:01	72.7°	59° ENE
8Mon	05:33	20:29	14h 56m	+1m	05:01	21:02	13:01	72.8°	59° ENE
9Tue	05:33	20:30	14h 57m	+1m	05:00	21:02	13:01	72.9°	59° ENE
10Wed	05:33	20:30	14h 57m	+1m	05:00	21:03	13:01	73.0°	59° ENE
11Thu	05:33	20:31	14h 58m	+1m	05:00	21:03	13:02	73.1°	59° ENE
12Fri	05:33	20:31	14h 59m	+1m	05:00	21:04	13:02	73.1°	58° ENE
13Sat	05:32	20:32	14h 59m	+1m	05:00	21:04	13:02	73.2°	58° ENE
14Sun	05:32	20:32	15h 00m	0m	05:00	21:05	13:02	73.3°	58° ENE
15MonToday	05:32	20:32	15h 00m	0m	05:00	21:05	13:02	73.3°	58° ENE
16Tue	05:33	20:33	15h 00m	0m	05:00	21:06	13:03	73.3°	58° ENE
17Wed	05:33	20:33	15h 01m	0m	05:00	21:06	13:03	73.4°	58° ENE
18Thu	05:33	20:33	15h 01m	0m	05:00	21:06	13:03	73.4°	58° ENE
19Fri	05:33	20:34	15h 01m	0m	05:00	21:07	13:03	73.4°	58° ENE
20Sat	05:33	20:34	15h 01m	0m	05:00	21:07	13:03	73.4°	58° ENE
21Sun★	05:33	20:34	15h 01m	0m	05:00	21:07	13:04	73.4°	58° ENE
22Mon	05:33	20:34	15h 01m	0m	05:00	21:07	13:04	73.4°	58° ENE
23Tue	05:34	20:34	15h 01m	0m	05:01	21:07	13:04	73.4°	58° ENE
24Wed	05:34	20:35	15h 01m	0m	05:01	21:07	13:04	73.4°	58° ENE
25Thu	05:34	20:35	15h 01m	0m	05:01	21:08	13:04	73.4°	58° ENE
26Fri	05:35	20:35	15h 00m	0m	05:02	21:08	13:05	73.3°	58° ENE
27Sat	05:35	20:35	15h 00m	0m	05:02	21:08	13:05	73.3°	58° ENE
28Sun	05:35	20:35	15h 00m	0m	05:02	21:08	13:05	73.3°	58° ENE
29Mon	05:36	20:35	14h 59m	0m	05:03	21:08	13:05	73.2°	58° ENE
30Tue	05:36	20:35	14h 59m	-1m	05:03	21:07	13:05	73.1°	58° ENE

Sunrise & sunset in other United States cities

Sunrise and sunset for other cities in United States.

Frequently Asked Questions

Expand all

What time does the sun rise in Boulder today?

The sun rises in Boulder today at 05:32 (America/Denver).

What time does the sun set in Boulder today?

The sun sets in Boulder today at 20:32 (America/Denver).

How long is the day in Boulder today?

Today's day length in Boulder is 15h 00m, with 0 min longer than yesterday compared to yesterday.

When is the longest day of the year in Boulder?

The longest day of 2026 in Boulder is June 21, with 15h 01m of daylight.

When is the shortest day of the year in Boulder?

The shortest day of 2026 in Boulder is December 22, with 9h 19m of daylight.

What is the golden hour in Boulder?

Golden hour in Boulder today runs from 05:36 to 06:13 in the morning and from 19:52 to 20:29 in the evening — when the sun is low and warm.

In which direction does the sun rise in Boulder?

Today the sun rises 58° east of north in Boulder (approximately ENE) and sets at 302° (WNW).

Does Boulder observe daylight saving time?

Yes. Boulder uses America/Denver, with the next DST transition on November 1, 2026.

When is the sun highest in Boulder today?

The sun reaches its highest point over Boulder today at 13:02 (America/Denver), climbing to an altitude of 73.3° above the horizon.

When is the blue hour in Boulder?

Blue hour in Boulder runs from 05:00 to 05:13 before sunrise and from 20:52 to 21:05 after sunset — the cool, photogenic window right before sunrise and after sunset.

What is the difference between civil, nautical, and astronomical twilight?

Civil twilight covers the sun between 0° and 6° below the horizon; nautical twilight is 6° to 12°; astronomical twilight is 12° to 18°. After astronomical twilight the sky is fully dark.

Why does the day length change during the year?

Earth's rotational axis is tilted about 23.5° relative to its orbit, so as the planet circles the sun each hemisphere faces toward the sun for part of the year and away for the other. That tilt is why days grow longer around each summer solstice and shorter around each winter solstice — the effect is strongest near the poles and vanishes at the equator.

Data source

Times computed with the NOAA / SunCalc solar-geometry model. Sea-level horizon is assumed; local terrain and buildings may shift actual times by several minutes.

Sunrise JSON API https://worldstats.org/api/sunrise/boulder-us

Updated:

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