Sunrise and sunset in Big Sky

Big Sky Sunrise, Sunset and Moon in September 2026

Local time (MDT)

Day length goes from 13 h 16 min on September 1 to 11 h 44 min on September 30. Sunrise moves from 6:47 AM to 7:23 AM and sunset from 8:03 PM to 7:07 PM.

Every day

Dawn and dusk are civil twilight (the sun 6 degrees below the horizon); golden hour starts when the evening sun is 6 degrees up; full dark is astronomical twilight, 18 degrees down. A blank moonrise or moonset means it falls on the next day.

DateDawnSunriseSunsetDuskGolden hourFull darkDay lengthChangeMoonMoonriseMoonset
Sep 16:17 AM6:47 AM8:03 PM8:33 PM7:23 PM9:48 PM13 h 16 minWaning gibbous, 77%9:44 PM12:04 PM
Sep 26:18 AM6:49 AM8:01 PM8:31 PM7:22 PM9:46 PM13 h 12 min-4.0 minWaning gibbous, 68%10:16 PM1:23 PM
Sep 36:19 AM6:50 AM7:59 PM8:29 PM7:20 PM9:44 PM13 h 09 min-3.0 minLast quarter, 58%10:59 PM2:41 PM
Sep 46:21 AM6:51 AM7:57 PM8:27 PM7:18 PM9:41 PM13 h 06 min-3.0 minLast quarter 1:51 AM11:55 PM3:53 PM
Sep 56:22 AM6:52 AM7:55 PM8:25 PM7:16 PM9:39 PM13 h 03 min-3.0 minWaning crescent, 37%4:54 PM
Sep 66:23 AM6:53 AM7:53 PM8:23 PM7:14 PM9:37 PM13 h 00 min-3.0 minWaning crescent, 27%1:04 AM5:42 PM
Sep 76:25 AM6:55 AM7:51 PM8:21 PM7:12 PM9:35 PM12 h 56 min-4.0 minWaning crescent, 18%2:22 AM6:18 PM
Sep 86:26 AM6:56 AM7:49 PM8:19 PM7:11 PM9:32 PM12 h 53 min-3.0 minWaning crescent, 11%3:44 AM6:47 PM
Sep 96:27 AM6:57 AM7:48 PM8:17 PM7:09 PM9:30 PM12 h 51 min-2.0 minWaning crescent, 5%5:05 AM7:10 PM
Sep 106:28 AM6:58 AM7:46 PM8:16 PM7:07 PM9:28 PM12 h 48 min-3.0 minNew moon 9:27 PM6:23 AM7:30 PM
Sep 116:30 AM6:59 AM7:44 PM8:14 PM7:05 PM9:26 PM12 h 45 min-3.0 minNew moon, 0%7:38 AM7:48 PM
Sep 126:31 AM7:01 AM7:42 PM8:12 PM7:03 PM9:24 PM12 h 41 min-4.0 minNew moon, 1%8:51 AM8:07 PM
Sep 136:32 AM7:02 AM7:40 PM8:10 PM7:01 PM9:21 PM12 h 38 min-3.0 minWaxing crescent, 4%10:03 AM8:27 PM
Sep 146:33 AM7:03 AM7:38 PM8:08 PM6:59 PM9:19 PM12 h 35 min-3.0 minWaxing crescent, 9%11:14 AM8:50 PM
Sep 156:35 AM7:04 AM7:36 PM8:06 PM6:57 PM9:17 PM12 h 32 min-3.0 minWaxing crescent, 16%12:24 PM9:17 PM
Sep 166:36 AM7:05 AM7:34 PM8:04 PM6:55 PM9:15 PM12 h 29 min-3.0 minWaxing crescent, 25%1:32 PM9:51 PM
Sep 176:37 AM7:07 AM7:32 PM8:02 PM6:53 PM9:13 PM12 h 25 min-4.0 minWaxing crescent, 34%2:34 PM10:33 PM
Sep 186:38 AM7:08 AM7:30 PM8:00 PM6:52 PM9:10 PM12 h 22 min-3.0 minFirst quarter 2:43 PM3:29 PM11:24 PM
Sep 196:40 AM7:09 AM7:28 PM7:58 PM6:50 PM9:08 PM12 h 19 min-3.0 minFirst quarter, 55%4:15 PM
Sep 206:41 AM7:10 AM7:27 PM7:56 PM6:48 PM9:06 PM12 h 17 min-2.0 minWaxing gibbous, 66%4:52 PM12:23 AM
Sep 216:42 AM7:12 AM7:25 PM7:54 PM6:46 PM9:04 PM12 h 13 min-4.0 minWaxing gibbous, 75%5:22 PM1:28 AM
Sep 226:43 AM7:13 AM7:23 PM7:52 PM6:44 PM9:02 PM12 h 10 min-3.0 minWaxing gibbous, 84%5:46 PM2:36 AM
Sep 236:45 AM7:14 AM7:21 PM7:50 PM6:42 PM9:00 PM12 h 07 min-3.0 minWaxing gibbous, 91%6:07 PM3:45 AM
Sep 246:46 AM7:15 AM7:19 PM7:48 PM6:40 PM8:58 PM12 h 04 min-3.0 minWaxing gibbous, 96%6:26 PM4:55 AM
Sep 256:47 AM7:16 AM7:17 PM7:46 PM6:38 PM8:56 PM12 h 01 min-3.0 minFull moon, 99%6:44 PM6:06 AM
Sep 266:48 AM7:18 AM7:15 PM7:44 PM6:36 PM8:54 PM11 h 57 min-4.0 minFull moon 10:49 AM7:03 PM7:18 AM
Sep 276:49 AM7:19 AM7:13 PM7:42 PM6:34 PM8:52 PM11 h 54 min-3.0 minWaning gibbous, 99%7:23 PM8:32 AM
Sep 286:51 AM7:20 AM7:11 PM7:41 PM6:32 PM8:50 PM11 h 51 min-3.0 minWaning gibbous, 95%7:48 PM9:49 AM
Sep 296:52 AM7:21 AM7:09 PM7:39 PM6:30 PM8:48 PM11 h 48 min-3.0 minWaning gibbous, 89%8:18 PM11:09 AM
Sep 306:53 AM7:23 AM7:07 PM7:37 PM6:28 PM8:46 PM11 h 44 min-4.0 minWaning gibbous, 82%8:58 PM12:29 PM

Other months

More

Sources

Computed with the NOAA solar position equations and the lunar methods of Meeus, Astronomical Algorithms, for a flat horizon; hills and buildings delay a real sunrise.