September 2026 Sunrise & Sunset Today in Princeton, United States 🇺🇸
Sun Phase: Astronomical Twilight
Sunrise Today: 05:50 ↑ 63.1° ENE
Sunset Today: 20:19 ↑ 296.7° WNW
Day Length: 14h 29m
Sun Direction: NW
Sun Altitude: -17.9°
Sun Distance: 151.934 million km
Next Equinox: Tuesday, September 22, 2026 (September Equinox)
When Is Sunrise & Sunset in Princeton?
September 2026 Sunrise & Sunset Times in Princeton
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| Day | Sunrise/Sunset | Daylight | Astronomical Twilight | Nautical Twilight | Civil Twilight | Solar Noon | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunrise | Sunset | Length | Diff. | Start | End | Start | End | Start | End | Time | Sun Dist. (Mil km) | |
| 1 |
06:26
↑
78° ENE
|
19:30
↑
281° W
|
13h 03m | -2m 33s | 04:49 | 21:06 | 05:24 | 20:31 | 05:57 | 19:58 | 12:58 | 150.98 |
| 2 |
06:27
↑
79° E
|
19:28
↑
281° W
|
13h 01m | -2m 33s | 04:51 | 21:04 | 05:25 | 20:29 | 05:58 | 19:56 | 12:58 | 150.94 |
| 3 |
06:28
↑
80° E
|
19:26
↑
280° W
|
12h 58m | -2m 34s | 04:52 | 21:02 | 05:26 | 20:28 | 05:59 | 19:55 | 12:58 | 150.91 |
| 4 |
06:29
↑
80° E
|
19:25
↑
280° W
|
12h 56m | -2m 34s | 04:53 | 21:00 | 05:28 | 20:26 | 06:00 | 19:53 | 12:57 | 150.87 |
| 5 |
06:30
↑
80° E
|
19:23
↑
279° W
|
12h 53m | -2m 34s | 04:54 | 20:58 | 05:29 | 20:24 | 06:01 | 19:51 | 12:57 | 150.84 |
| 6 |
06:31
↑
81° E
|
19:22
↑
279° W
|
12h 50m | -2m 35s | 04:56 | 20:56 | 05:30 | 20:22 | 06:02 | 19:50 | 12:57 | 150.80 |
| 7 |
06:32
↑
82° E
|
19:20
↑
278° W
|
12h 48m | -2m 35s | 04:57 | 20:54 | 05:31 | 20:21 | 06:03 | 19:48 | 12:56 | 150.77 |
| 8 |
06:33
↑
82° E
|
19:18
↑
278° W
|
12h 45m | -2m 35s | 04:58 | 20:52 | 05:32 | 20:19 | 06:04 | 19:46 | 12:56 | 150.73 |
| 9 |
06:34
↑
82° E
|
19:17
↑
277° W
|
12h 43m | -2m 36s | 04:59 | 20:50 | 05:33 | 20:17 | 06:05 | 19:45 | 12:56 | 150.69 |
| 10 |
06:34
↑
83° E
|
19:15
↑
277° W
|
12h 40m | -2m 36s | 05:01 | 20:49 | 05:34 | 20:15 | 06:06 | 19:43 | 12:55 | 150.65 |
| 11 |
06:35
↑
84° E
|
19:13
↑
276° W
|
12h 37m | -2m 36s | 05:02 | 20:47 | 05:35 | 20:13 | 06:07 | 19:41 | 12:55 | 150.61 |
| 12 |
06:36
↑
84° E
|
19:12
↑
276° W
|
12h 35m | -2m 37s | 05:03 | 20:45 | 05:36 | 20:12 | 06:08 | 19:40 | 12:55 | 150.58 |
| 13 |
06:37
↑
84° E
|
19:10
↑
275° W
|
12h 32m | -2m 37s | 05:04 | 20:43 | 05:37 | 20:10 | 06:09 | 19:38 | 12:54 | 150.54 |
| 14 |
06:38
↑
85° E
|
19:08
↑
275° W
|
12h 30m | -2m 37s | 05:05 | 20:41 | 05:38 | 20:08 | 06:10 | 19:36 | 12:54 | 150.50 |
| 15 |
06:39
↑
86° E
|
19:07
↑
274° W
|
12h 27m | -2m 37s | 05:06 | 20:39 | 05:39 | 20:06 | 06:11 | 19:34 | 12:54 | 150.46 |
| 16 |
06:40
↑
86° E
|
19:05
↑
274° W
|
12h 24m | -2m 37s | 05:08 | 20:37 | 05:40 | 20:05 | 06:12 | 19:33 | 12:53 | 150.41 |
| 17 |
06:41
↑
86° E
|
19:03
↑
273° W
|
12h 22m | -2m 38s | 05:09 | 20:36 | 05:41 | 20:03 | 06:13 | 19:31 | 12:53 | 150.37 |
| 18 |
06:42
↑
87° E
|
19:02
↑
273° W
|
12h 19m | -2m 38s | 05:10 | 20:34 | 05:42 | 20:01 | 06:14 | 19:29 | 12:52 | 150.33 |
| 19 |
06:43
↑
88° E
|
19:00
↑
272° W
|
12h 16m | -2m 38s | 05:11 | 20:32 | 05:44 | 19:59 | 06:15 | 19:28 | 12:52 | 150.29 |
| 20 |
06:44
↑
88° E
|
18:58
↑
272° W
|
12h 14m | -2m 38s | 05:12 | 20:30 | 05:45 | 19:58 | 06:16 | 19:26 | 12:52 | 150.25 |
| 21 |
06:45
↑
88° E
|
18:57
↑
271° W
|
12h 11m | -2m 38s | 05:13 | 20:28 | 05:46 | 19:56 | 06:17 | 19:24 | 12:51 | 150.21 |
| 22 |
06:46
↑
89° E
|
18:55
↑
271° W
|
12h 08m | -2m 38s | 05:14 | 20:26 | 05:47 | 19:54 | 06:18 | 19:23 | 12:51 | 150.16 |
| 23 |
06:47
↑
90° E
|
18:53
↑
270° W
|
12h 06m | -2m 38s | 05:15 | 20:25 | 05:48 | 19:52 | 06:19 | 19:21 | 12:51 | 150.12 |
| 24 |
06:48
↑
90° E
|
18:52
↑
270° W
|
12h 03m | -2m 38s | 05:16 | 20:23 | 05:49 | 19:51 | 06:20 | 19:19 | 12:50 | 150.08 |
| 25 |
06:49
↑
91° E
|
18:50
↑
269° W
|
12h 00m | -2m 38s | 05:18 | 20:21 | 05:50 | 19:49 | 06:21 | 19:18 | 12:50 | 150.04 |
| 26 |
06:50
↑
91° E
|
18:48
↑
269° W
|
11h 58m | -2m 38s | 05:19 | 20:19 | 05:51 | 19:47 | 06:22 | 19:16 | 12:50 | 149.99 |
| 27 |
06:51
↑
92° E
|
18:47
↑
268° W
|
11h 55m | -2m 38s | 05:20 | 20:18 | 05:52 | 19:46 | 06:23 | 19:14 | 12:49 | 149.95 |
| 28 |
06:52
↑
92° E
|
18:45
↑
268° W
|
11h 53m | -2m 38s | 05:21 | 20:16 | 05:53 | 19:44 | 06:24 | 19:13 | 12:49 | 149.91 |
| 29 |
06:53
↑
93° E
|
18:43
↑
267° W
|
11h 50m | -2m 38s | 05:22 | 20:14 | 05:54 | 19:42 | 06:25 | 19:11 | 12:49 | 149.87 |
| 30 |
06:54
↑
93° E
|
18:42
↑
267° W
|
11h 47m | -2m 38s | 05:23 | 20:12 | 05:55 | 19:41 | 06:26 | 19:09 | 12:48 | 149.83 |
|
All times are in local time for Princeton. Time is adjusted for Daylight Saving Time (DST) when applicable. Calculations account for atmospheric refraction and are based on the Gregorian calendar. Today's date is in the table. |
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In Princeton, the earliest sunrise of September is on September 01 and the latest sunset of September is on September 01.
2026 Sun Graph for Princeton
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Sun's Path on Selected Date in Princeton
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Is the Day Getting Longer or Shorter in Princeton?
Days in Princeton are currently getting shorter by about 1m 47s each day, roughly 13 minutes less daylight per week.
Golden Hour & Blue Hour in Princeton Today
| Morning | Evening | |
|---|---|---|
| Blue hour | 05:19-05:31 | 20:38-20:50 |
| Golden hour | 05:31-06:29 | 19:40-20:38 |
Princeton's Longest and Shortest Days
| Event | Date | Daylight |
|---|---|---|
| Longest day | June 22, 2026 | -9h 02m |
| Shortest day | December 21, 2026 | 9h 16m |
| Earliest sunrise | June 8, 2026 | 05:28 |
| Latest sunset | June 23, 2026 | 20:32 |
Understanding Twilight & the Golden Hour
After the sun drops below the horizon, the sky does not turn dark all at once. Civil twilight is the brightest stage, when there is still enough natural light for most outdoor activities. Nautical twilight follows, when the sea horizon becomes hard to make out. Astronomical twilight is the darkest stage, after which the sky is fully dark and the faintest stars appear. The same three stages occur in reverse before sunrise, as dawn.
In Princeton today, the morning golden hour runs 05:31-06:29 and the evening golden hour 19:40-20:38, with the cooler blue hour around 05:19-05:31 and 20:38-20:50. These warm and cool light windows drift through the year as the sun's path changes.
Frequently Asked Questions about Sun in Princeton
What time is sunrise in Princeton today?
Today Princeton has sunrise at 05:50 local time.
What time is sunset in Princeton today?
The sun sets over Princeton today at 20:19 local time.
What time is solar noon in Princeton today?
Solar noon in Princeton — when the sun is at its highest point in the sky — is at 13:05 local time today.
When does civil twilight begin and end in Princeton?
In Princeton today: civil twilight begins at 05:18 (before sunrise) and ends at 20:51 (after sunset). Civil twilight is the brightest of the three twilight phases.
When does nautical twilight occur in Princeton?
Nautical twilight in Princeton today runs from 04:39 in the morning to 21:29 in the evening — the period when the horizon is still visible to sailors but stars are out.
When is the sky fully dark in Princeton for stargazing?
Astronomical twilight in Princeton ends at 22:12 in the evening and resumes at 03:56 in the morning — between those times the sky is fully dark, ideal for observing faint stars and deep-sky objects.
Where on the horizon does the sun rise and set in Princeton?
Today in Princeton, the sun rises at an azimuth of 63° and sets at 297° (measured clockwise from due north). The exact angle shifts slightly each day with the seasons.
