Sunrise and sunset in Roundup

Roundup Sunrise, Sunset and Moon in September 2026

Local time (MDT)

Day length goes from 13 h 18 min on September 1 to 11 h 44 min on September 30. Sunrise moves from 6:35 AM to 7:12 AM and sunset from 7:53 PM to 6:56 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 16:03 AM6:35 AM7:53 PM8:24 PM7:13 PM9:41 PM13 h 18 minWaning gibbous, 77%9:28 PM11:56 AM
Sep 26:05 AM6:36 AM7:51 PM8:22 PM7:11 PM9:39 PM13 h 15 min-3.0 minWaning gibbous, 68%9:59 PM1:16 PM
Sep 36:06 AM6:37 AM7:49 PM8:20 PM7:09 PM9:36 PM13 h 12 min-3.0 minLast quarter, 58%10:41 PM2:35 PM
Sep 46:07 AM6:38 AM7:47 PM8:18 PM7:07 PM9:34 PM13 h 09 min-3.0 minLast quarter 1:51 AM11:37 PM3:48 PM
Sep 56:09 AM6:40 AM7:45 PM8:16 PM7:05 PM9:32 PM13 h 05 min-4.0 minWaning crescent, 37%4:48 PM
Sep 66:10 AM6:41 AM7:43 PM8:14 PM7:03 PM9:29 PM13 h 02 min-3.0 minWaning crescent, 27%12:46 AM5:36 PM
Sep 76:11 AM6:42 AM7:41 PM8:12 PM7:01 PM9:27 PM12 h 59 min-3.0 minWaning crescent, 18%2:05 AM6:11 PM
Sep 86:13 AM6:43 AM7:39 PM8:10 PM6:59 PM9:25 PM12 h 56 min-3.0 minWaning crescent, 11%3:29 AM6:38 PM
Sep 96:14 AM6:45 AM7:37 PM8:08 PM6:57 PM9:22 PM12 h 52 min-4.0 minWaning crescent, 5%4:51 AM7:00 PM
Sep 106:15 AM6:46 AM7:35 PM8:06 PM6:56 PM9:20 PM12 h 49 min-3.0 minNew moon 9:27 PM6:10 AM7:19 PM
Sep 116:17 AM6:47 AM7:33 PM8:04 PM6:54 PM9:18 PM12 h 46 min-3.0 minNew moon, 0%7:26 AM7:37 PM
Sep 126:18 AM6:49 AM7:31 PM8:02 PM6:52 PM9:15 PM12 h 42 min-4.0 minNew moon, 1%8:40 AM7:54 PM
Sep 136:19 AM6:50 AM7:29 PM8:00 PM6:50 PM9:13 PM12 h 39 min-3.0 minWaxing crescent, 4%9:53 AM8:13 PM
Sep 146:21 AM6:51 AM7:27 PM7:58 PM6:48 PM9:11 PM12 h 36 min-3.0 minWaxing crescent, 9%11:06 AM8:35 PM
Sep 156:22 AM6:52 AM7:25 PM7:56 PM6:46 PM9:09 PM12 h 33 min-3.0 minWaxing crescent, 16%12:17 PM9:01 PM
Sep 166:23 AM6:54 AM7:23 PM7:54 PM6:44 PM9:06 PM12 h 29 min-4.0 minWaxing crescent, 25%1:26 PM9:34 PM
Sep 176:25 AM6:55 AM7:21 PM7:52 PM6:42 PM9:04 PM12 h 26 min-3.0 minWaxing crescent, 34%2:29 PM10:15 PM
Sep 186:26 AM6:56 AM7:19 PM7:50 PM6:40 PM9:02 PM12 h 23 min-3.0 minFirst quarter 2:43 PM3:24 PM11:06 PM
Sep 196:27 AM6:57 AM7:17 PM7:48 PM6:38 PM9:00 PM12 h 20 min-3.0 minFirst quarter, 55%4:10 PM
Sep 206:29 AM6:59 AM7:15 PM7:46 PM6:36 PM8:57 PM12 h 16 min-4.0 minWaxing gibbous, 66%4:46 PM12:05 AM
Sep 216:30 AM7:00 AM7:13 PM7:44 PM6:34 PM8:55 PM12 h 13 min-3.0 minWaxing gibbous, 75%5:15 PM1:11 AM
Sep 226:31 AM7:01 AM7:11 PM7:42 PM6:32 PM8:53 PM12 h 10 min-3.0 minWaxing gibbous, 84%5:38 PM2:20 AM
Sep 236:32 AM7:03 AM7:09 PM7:39 PM6:30 PM8:51 PM12 h 06 min-4.0 minWaxing gibbous, 91%5:58 PM3:30 AM
Sep 246:34 AM7:04 AM7:08 PM7:37 PM6:28 PM8:49 PM12 h 04 min-2.0 minWaxing gibbous, 96%6:16 PM4:41 AM
Sep 256:35 AM7:05 AM7:06 PM7:36 PM6:26 PM8:47 PM12 h 01 min-3.0 minFull moon, 99%6:33 PM5:53 AM
Sep 266:36 AM7:06 AM7:04 PM7:34 PM6:24 PM8:44 PM11 h 58 min-3.0 minFull moon 10:49 AM6:50 PM7:06 AM
Sep 276:38 AM7:08 AM7:02 PM7:32 PM6:22 PM8:42 PM11 h 54 min-4.0 minWaning gibbous, 99%7:10 PM8:22 AM
Sep 286:39 AM7:09 AM7:00 PM7:30 PM6:20 PM8:40 PM11 h 51 min-3.0 minWaning gibbous, 95%7:33 PM9:40 AM
Sep 296:40 AM7:10 AM6:58 PM7:28 PM6:18 PM8:38 PM11 h 48 min-3.0 minWaning gibbous, 89%8:02 PM11:02 AM
Sep 306:42 AM7:12 AM6:56 PM7:26 PM6:16 PM8:36 PM11 h 44 min-4.0 minWaning gibbous, 82%8:41 PM12:23 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.