Sunrise and sunset in Casper

Casper Sunrise, Sunset and Moon in May 2026

Local time (MDT)

Day length goes from 14 h 07 min on May 1 to 15 h 07 min on May 31. Sunrise moves from 5:59 AM to 5:30 AM and sunset from 8:06 PM to 8:37 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
May 15:28 AM5:59 AM8:06 PM8:37 PM7:27 PM9:58 PM14 h 07 minFull moon 11:24 AM8:38 PM5:33 AM
May 25:27 AM5:58 AM8:07 PM8:39 PM7:28 PM9:59 PM14 h 09 min+2.0 minFull moon, 99%9:43 PM5:59 AM
May 35:25 AM5:56 AM8:08 PM8:40 PM7:29 PM10:01 PM14 h 12 min+3.0 minWaning gibbous, 96%10:45 PM6:32 AM
May 45:24 AM5:55 AM8:10 PM8:41 PM7:30 PM10:03 PM14 h 15 min+3.0 minWaning gibbous, 91%11:42 PM7:12 AM
May 55:22 AM5:54 AM8:11 PM8:42 PM7:31 PM10:05 PM14 h 17 min+2.0 minWaning gibbous, 85%8:00 AM
May 65:21 AM5:53 AM8:12 PM8:43 PM7:32 PM10:06 PM14 h 19 min+2.0 minWaning gibbous, 76%12:32 AM8:56 AM
May 75:20 AM5:51 AM8:13 PM8:45 PM7:33 PM10:08 PM14 h 22 min+3.0 minWaning gibbous, 67%1:13 AM9:58 AM
May 85:18 AM5:50 AM8:14 PM8:46 PM7:34 PM10:10 PM14 h 24 min+2.0 minLast quarter, 56%1:47 AM11:03 AM
May 95:17 AM5:49 AM8:15 PM8:47 PM7:35 PM10:12 PM14 h 26 min+2.0 minLast quarter 3:11 PM2:14 AM12:10 PM
May 105:16 AM5:48 AM8:16 PM8:48 PM7:36 PM10:13 PM14 h 28 min+2.0 minWaning crescent, 35%2:38 AM1:18 PM
May 115:15 AM5:47 AM8:17 PM8:50 PM7:37 PM10:15 PM14 h 30 min+2.0 minWaning crescent, 26%2:59 AM2:27 PM
May 125:13 AM5:45 AM8:18 PM8:51 PM7:38 PM10:17 PM14 h 33 min+3.0 minWaning crescent, 17%3:20 AM3:38 PM
May 135:12 AM5:44 AM8:20 PM8:52 PM7:39 PM10:19 PM14 h 36 min+3.0 minWaning crescent, 10%3:41 AM4:52 PM
May 145:11 AM5:43 AM8:21 PM8:53 PM7:40 PM10:20 PM14 h 38 min+2.0 minWaning crescent, 4%4:04 AM6:11 PM
May 155:10 AM5:42 AM8:22 PM8:54 PM7:41 PM10:22 PM14 h 40 min+2.0 minWaning crescent, 1%4:31 AM7:33 PM
May 165:09 AM5:41 AM8:23 PM8:55 PM7:42 PM10:24 PM14 h 42 min+2.0 minNew moon 2:02 PM5:05 AM8:56 PM
May 175:07 AM5:40 AM8:24 PM8:57 PM7:43 PM10:26 PM14 h 44 min+2.0 minWaxing crescent, 1%5:49 AM10:16 PM
May 185:06 AM5:39 AM8:25 PM8:58 PM7:44 PM10:27 PM14 h 46 min+2.0 minWaxing crescent, 5%6:46 AM11:25 PM
May 195:05 AM5:38 AM8:26 PM8:59 PM7:44 PM10:29 PM14 h 48 min+2.0 minWaxing crescent, 10%7:56 AM
May 205:04 AM5:37 AM8:27 PM9:00 PM7:45 PM10:31 PM14 h 50 min+2.0 minWaxing crescent, 17%9:13 AM12:19 AM
May 215:03 AM5:37 AM8:28 PM9:01 PM7:46 PM10:32 PM14 h 51 min+1.0 minWaxing crescent, 26%10:32 AM1:00 AM
May 225:02 AM5:36 AM8:29 PM9:02 PM7:47 PM10:34 PM14 h 53 min+2.0 minWaxing crescent, 36%11:49 AM1:31 AM
May 235:02 AM5:35 AM8:30 PM9:03 PM7:48 PM10:36 PM14 h 55 min+2.0 minFirst quarter 5:11 AM1:01 PM1:56 AM
May 245:01 AM5:34 AM8:31 PM9:04 PM7:49 PM10:37 PM14 h 57 min+2.0 minFirst quarter, 57%2:09 PM2:17 AM
May 255:00 AM5:33 AM8:32 PM9:05 PM7:50 PM10:39 PM14 h 59 min+2.0 minWaxing gibbous, 67%3:15 PM2:36 AM
May 264:59 AM5:33 AM8:32 PM9:06 PM7:50 PM10:40 PM14 h 59 min+0.0 minWaxing gibbous, 77%4:20 PM2:55 AM
May 274:58 AM5:32 AM8:33 PM9:07 PM7:51 PM10:42 PM15 h 01 min+2.0 minWaxing gibbous, 85%5:24 PM3:15 AM
May 284:58 AM5:31 AM8:34 PM9:08 PM7:52 PM10:44 PM15 h 03 min+2.0 minWaxing gibbous, 92%6:29 PM3:37 AM
May 294:57 AM5:31 AM8:35 PM9:09 PM7:53 PM10:45 PM15 h 04 min+1.0 minWaxing gibbous, 97%7:34 PM4:02 AM
May 304:56 AM5:30 AM8:36 PM9:10 PM7:54 PM10:46 PM15 h 06 min+2.0 minFull moon, 99%8:37 PM4:33 AM
May 314:56 AM5:30 AM8:37 PM9:11 PM7:54 PM10:48 PM15 h 07 min+1.0 minFull moon 2:46 AM9:36 PM5:11 AM

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.