Sunrise and sunset in Cook County

Cook County Sunrise, Sunset and Moon in December 2026

Local time (CST)

Day length goes from 8 h 42 min on December 1 to 8 h 28 min on December 31. Sunrise moves from 7:30 AM to 7:51 AM and sunset from 4:12 PM to 4:19 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
Dec 16:55 AM7:30 AM4:12 PM4:47 PM3:21 PM6:03 PM8 h 42 minLast quarter 12:09 AM12:41 PM
Dec 26:56 AM7:32 AM4:11 PM4:47 PM3:20 PM6:03 PM8 h 39 min-3.0 minLast quarter, 43%12:45 AM12:57 PM
Dec 36:57 AM7:33 AM4:11 PM4:47 PM3:19 PM6:03 PM8 h 38 min-1.0 minWaning crescent, 32%1:58 AM1:13 PM
Dec 46:58 AM7:34 AM4:11 PM4:46 PM3:19 PM6:03 PM8 h 37 min-1.0 minWaning crescent, 23%3:09 AM1:30 PM
Dec 56:59 AM7:35 AM4:10 PM4:46 PM3:18 PM6:03 PM8 h 35 min-2.0 minWaning crescent, 15%4:21 AM1:50 PM
Dec 67:00 AM7:36 AM4:10 PM4:46 PM3:18 PM6:02 PM8 h 34 min-1.0 minWaning crescent, 8%5:32 AM2:15 PM
Dec 77:01 AM7:37 AM4:10 PM4:46 PM3:18 PM6:02 PM8 h 33 min-1.0 minWaning crescent, 3%6:41 AM2:46 PM
Dec 87:02 AM7:38 AM4:10 PM4:46 PM3:17 PM6:02 PM8 h 32 min-1.0 minNew moon 6:52 PM7:46 AM3:26 PM
Dec 97:03 AM7:39 AM4:10 PM4:46 PM3:17 PM6:02 PM8 h 31 min-1.0 minNew moon, 0%8:43 AM4:15 PM
Dec 107:04 AM7:40 AM4:10 PM4:46 PM3:17 PM6:03 PM8 h 30 min-1.0 minWaxing crescent, 2%9:30 AM5:13 PM
Dec 117:05 AM7:41 AM4:10 PM4:46 PM3:17 PM6:03 PM8 h 29 min-1.0 minWaxing crescent, 6%10:06 AM6:18 PM
Dec 127:06 AM7:42 AM4:10 PM4:46 PM3:17 PM6:03 PM8 h 28 min-1.0 minWaxing crescent, 12%10:35 AM7:25 PM
Dec 137:07 AM7:43 AM4:10 PM4:46 PM3:17 PM6:03 PM8 h 27 min-1.0 minWaxing crescent, 20%10:58 AM8:34 PM
Dec 147:08 AM7:44 AM4:10 PM4:46 PM3:17 PM6:03 PM8 h 26 min-1.0 minWaxing crescent, 29%11:16 AM9:42 PM
Dec 157:08 AM7:45 AM4:10 PM4:46 PM3:17 PM6:03 PM8 h 25 min-1.0 minWaxing crescent, 39%11:32 AM10:51 PM
Dec 167:09 AM7:45 AM4:10 PM4:47 PM3:17 PM6:04 PM8 h 25 min+0.0 minFirst quarter 11:43 PM11:47 AM
Dec 177:10 AM7:46 AM4:11 PM4:47 PM3:17 PM6:04 PM8 h 25 min+0.0 minFirst quarter, 60%12:02 PM12:00 AM
Dec 187:10 AM7:47 AM4:11 PM4:47 PM3:18 PM6:04 PM8 h 24 min-1.0 minWaxing gibbous, 70%12:19 PM1:12 AM
Dec 197:11 AM7:47 AM4:11 PM4:48 PM3:18 PM6:05 PM8 h 24 min+0.0 minWaxing gibbous, 79%12:39 PM2:28 AM
Dec 207:12 AM7:48 AM4:12 PM4:48 PM3:18 PM6:05 PM8 h 24 min+0.0 minWaxing gibbous, 87%1:04 PM3:49 AM
Dec 217:12 AM7:48 AM4:12 PM4:49 PM3:19 PM6:06 PM8 h 24 min+0.0 minWaxing gibbous, 93%1:39 PM5:13 AM
Dec 227:13 AM7:49 AM4:13 PM4:49 PM3:19 PM6:06 PM8 h 24 min+0.0 minWaxing gibbous, 98%2:27 PM6:36 AM
Dec 237:13 AM7:49 AM4:13 PM4:50 PM3:20 PM6:07 PM8 h 24 min+0.0 minFull moon 7:28 PM3:32 PM7:50 AM
Dec 247:14 AM7:50 AM4:14 PM4:50 PM3:21 PM6:07 PM8 h 24 min+0.0 minFull moon, 100%4:52 PM8:49 AM
Dec 257:14 AM7:50 AM4:15 PM4:51 PM3:21 PM6:08 PM8 h 25 min+1.0 minWaning gibbous, 97%6:20 PM9:32 AM
Dec 267:14 AM7:50 AM4:15 PM4:52 PM3:22 PM6:09 PM8 h 25 min+0.0 minWaning gibbous, 93%7:48 PM10:03 AM
Dec 277:15 AM7:51 AM4:16 PM4:52 PM3:23 PM6:09 PM8 h 25 min+0.0 minWaning gibbous, 86%9:12 PM10:27 AM
Dec 287:15 AM7:51 AM4:17 PM4:53 PM3:24 PM6:10 PM8 h 26 min+1.0 minWaning gibbous, 78%10:31 PM10:46 AM
Dec 297:15 AM7:51 AM4:18 PM4:54 PM3:25 PM6:11 PM8 h 27 min+1.0 minWaning gibbous, 69%11:46 PM11:03 AM
Dec 307:15 AM7:51 AM4:19 PM4:55 PM3:26 PM6:12 PM8 h 28 min+1.0 minLast quarter 12:59 PM11:19 AM
Dec 317:15 AM7:51 AM4:19 PM4:55 PM3:27 PM6:12 PM8 h 28 min+0.0 minLast quarter, 48%1:00 AM11:36 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.