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West Yellowstone, Montana, USA — Sunrise, Sunset, and Daylength, September 2025

Daylight

6:28 am – 8:27 pm
13 hours, 59 minutes

Current Time: Aug 16, 2025 at 12:09:37 pm
Sun Direction: 145.47° SE
Sun Altitude: 54.58°
Sun Distance: 94.118 million mi
Next Equinox: Sep 22, 2025 12:19 pm (Autumnal)
Sunrise Today: 6:28 am 70° East
Sunset Today: 8:27 pm 290° West
Location of West YellowstoneLocation

2025 Sun Graph for West Yellowstone

September 2025 — Sun in West Yellowstone

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2025Sunrise/SunsetDaylengthAstronomical TwilightNautical TwilightCivil TwilightSolar Noon
SepSunriseSunsetLengthDiff.StartEndStartEndStartEndTimeMil. mi
16:47 am (78°)8:00 pm (282°)13:12:54−2:585:02 am9:44 pm5:41 am9:06 pm6:17 am8:30 pm1:24 pm (53.3°)93.798
26:48 am (78°)7:58 pm (281°)13:09:55−2:595:04 am9:42 pm5:42 am9:04 pm6:18 am8:28 pm1:23 pm (52.9°)93.775
36:49 am (79°)7:56 pm (281°)13:06:55−2:595:05 am9:39 pm5:43 am9:02 pm6:19 am8:26 pm1:23 pm (52.6°)93.752
46:50 am (79°)7:54 pm (280°)13:03:55−3:005:07 am9:37 pm5:45 am9:00 pm6:20 am8:24 pm1:23 pm (52.2°)93.729
56:52 am (80°)7:52 pm (280°)13:00:55−3:005:09 am9:35 pm5:46 am8:58 pm6:22 am8:22 pm1:22 pm (51.8°)93.706
66:53 am (80°)7:51 pm (279°)12:57:54−3:005:10 am9:33 pm5:47 am8:56 pm6:23 am8:20 pm1:22 pm (51.5°)93.682
76:54 am (81°)7:49 pm (279°)12:54:52−3:015:12 am9:31 pm5:49 am8:54 pm6:24 am8:18 pm1:22 pm (51.1°)93.659
86:55 am (81°)7:47 pm (278°)12:51:51−3:015:13 am9:28 pm5:50 am8:52 pm6:25 am8:17 pm1:21 pm (50.7°)93.635
96:56 am (82°)7:45 pm (278°)12:48:49−3:025:15 am9:26 pm5:51 am8:50 pm6:27 am8:15 pm1:21 pm (50.3°)93.612
106:57 am (83°)7:43 pm (277°)12:45:46−3:025:16 am9:24 pm5:53 am8:48 pm6:28 am8:13 pm1:21 pm (50.0°)93.588
116:59 am (83°)7:41 pm (277°)12:42:44−3:025:18 am9:22 pm5:54 am8:46 pm6:29 am8:11 pm1:20 pm (49.6°)93.564
127:00 am (84°)7:39 pm (276°)12:39:41−3:025:19 am9:20 pm5:55 am8:44 pm6:30 am8:09 pm1:20 pm (49.2°)93.540
137:01 am (84°)7:38 pm (276°)12:36:38−3:035:20 am9:18 pm5:57 am8:42 pm6:32 am8:07 pm1:20 pm (48.8°)93.516
147:02 am (85°)7:36 pm (275°)12:33:34−3:035:22 am9:15 pm5:58 am8:40 pm6:33 am8:05 pm1:19 pm (48.4°)93.492
157:03 am (85°)7:34 pm (274°)12:30:31−3:035:23 am9:13 pm5:59 am8:38 pm6:34 am8:03 pm1:19 pm (48.0°)93.468
167:04 am (86°)7:32 pm (274°)12:27:27−3:035:25 am9:11 pm6:01 am8:36 pm6:35 am8:01 pm1:19 pm (47.7°)93.444
177:06 am (86°)7:30 pm (273°)12:24:23−3:035:26 am9:09 pm6:02 am8:34 pm6:36 am7:59 pm1:18 pm (47.3°)93.419
187:07 am (87°)7:28 pm (273°)12:21:19−3:045:28 am9:07 pm6:03 am8:32 pm6:38 am7:57 pm1:18 pm (46.9°)93.394
197:08 am (87°)7:26 pm (272°)12:18:15−3:045:29 am9:05 pm6:04 am8:30 pm6:39 am7:55 pm1:18 pm (46.5°)93.369
207:09 am (88°)7:24 pm (272°)12:15:10−3:045:30 am9:03 pm6:06 am8:28 pm6:40 am7:53 pm1:17 pm (46.1°)93.343
217:10 am (89°)7:22 pm (271°)12:12:06−3:045:32 am9:01 pm6:07 am8:26 pm6:41 am7:52 pm1:17 pm (45.7°)93.318
227:12 am (89°)7:21 pm (271°)12:09:01−3:045:33 am8:59 pm6:08 am8:24 pm6:42 am7:50 pm1:16 pm (45.3°)93.292
237:13 am (90°)7:19 pm (270°)12:05:57−3:045:34 am8:57 pm6:09 am8:22 pm6:44 am7:48 pm1:16 pm (44.9°)93.266
247:14 am (90°)7:17 pm (270°)12:02:52−3:045:36 am8:55 pm6:11 am8:20 pm6:45 am7:46 pm1:16 pm (44.6°)93.239
257:15 am (91°)7:15 pm (269°)11:59:48−3:045:37 am8:53 pm6:12 am8:18 pm6:46 am7:44 pm1:15 pm (44.2°)93.213
267:16 am (91°)7:13 pm (268°)11:56:43−3:045:38 am8:51 pm6:13 am8:16 pm6:47 am7:42 pm1:15 pm (43.8°)93.186
277:18 am (92°)7:11 pm (268°)11:53:39−3:045:40 am8:49 pm6:14 am8:14 pm6:48 am7:40 pm1:15 pm (43.4°)93.159
287:19 am (92°)7:09 pm (267°)11:50:34−3:045:41 am8:47 pm6:16 am8:12 pm6:50 am7:38 pm1:14 pm (43.0°)93.133
297:20 am (93°)7:07 pm (267°)11:47:30−3:045:42 am8:45 pm6:17 am8:10 pm6:51 am7:36 pm1:14 pm (42.6°)93.105
307:21 am (93°)7:06 pm (266°)11:44:26−3:045:44 am8:43 pm6:18 am8:08 pm6:52 am7:35 pm1:14 pm (42.2°)93.078
* All times are local time for West Yellowstone. Time is adjusted for DST when applicable. They take into account refraction. Dates are based on the Gregorian calendar.

The September equinox (autumnal equinox) in West Yellowstone is at 12:19 pm on Monday, September 22, 2025.
Why is the day and night not exactly 12 hours on equinox?

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