Bismarck, ND · September 2027

Bismarck sunrise and sunset in September 2027

Short answer

Bismarck loses 95 minutes of daylight in September 2027, from 13 h 20 min on the 1st to 11 h 45 min on the 30th. The biggest one-day change is 3.3 minutes, on September 25.
September 1
13 h 20 min
September 30
11 h 45 min

September at a glance

Bismarck loses 95 minutes of daylight in September 2027, from 13 h 20 min on the 1st to 11 h 45 min on the 30th. The biggest one-day change is 3.3 minutes, on September 25.

00:0003:0006:0009:0012:0015:0018:0021:00Sep 1Sep 8Sep 15Sep 22Sep 29
Each column is one day, from sunrise to sunset in local clock time (CDT).

Sunrise ranges from 7:02 AM on September 1 to 7:40 AM on September 30, and sunset from 7:25 PM on September 30 to 8:22 PM on September 1. Clocks stay on CDT all month.

The average September day, 12 h 33 min, is 97 minutes shorter than August's and 100 minutes longer than October's.

September in the year

Average day length for each month of 2027 in Bismarck, with September marked. The longest month on average is June and the shortest is December.

12 h 33 minJFMAMJJASOND

Compared with other capitals

On September 15, Bismarck gets 12 h 34 min of daylight, 3rd of the 51 capitals. Juneau has the most that day, 12 h 50 min, and Honolulu the least, 12 h 16 min. Among neighboring capitals, Saint Paul gets 12 h 32 min, Pierre gets 12 h 32 min, Helena gets 12 h 34 min.

Every day in September 2027

DayCivil dawnSunriseSolar noonSunsetCivil duskDaylightChange
Sep 16:31 AM7:02 AM1:43 PM8:22 PM8:54 PM13 h 20 min
Sep 26:32 AM7:03 AM1:42 PM8:20 PM8:52 PM13 h 17 min-3:13
Sep 36:33 AM7:05 AM1:42 PM8:18 PM8:50 PM13 h 14 min-3:14
Sep 46:35 AM7:06 AM1:42 PM8:16 PM8:47 PM13 h 10 min-3:14
Sep 56:36 AM7:07 AM1:41 PM8:14 PM8:45 PM13 h 07 min-3:15
Sep 66:38 AM7:09 AM1:41 PM8:12 PM8:43 PM13 h 04 min-3:15
Sep 76:39 AM7:10 AM1:41 PM8:11 PM8:41 PM13 h 01 min-3:16
Sep 86:40 AM7:11 AM1:40 PM8:09 PM8:39 PM12 h 57 min-3:16
Sep 96:42 AM7:13 AM1:40 PM8:07 PM8:37 PM12 h 54 min-3:16
Sep 106:43 AM7:14 AM1:40 PM8:05 PM8:35 PM12 h 51 min-3:17
Sep 116:44 AM7:15 AM1:39 PM8:03 PM8:33 PM12 h 47 min-3:17
Sep 126:46 AM7:16 AM1:39 PM8:01 PM8:31 PM12 h 44 min-3:17
Sep 136:47 AM7:18 AM1:39 PM7:59 PM8:29 PM12 h 41 min-3:18
Sep 146:48 AM7:19 AM1:38 PM7:57 PM8:27 PM12 h 38 min-3:18
Sep 156:50 AM7:20 AM1:38 PM7:55 PM8:25 PM12 h 34 min-3:18
Sep 166:51 AM7:22 AM1:37 PM7:53 PM8:23 PM12 h 31 min-3:18
Sep 176:52 AM7:23 AM1:37 PM7:51 PM8:21 PM12 h 28 min-3:18
Sep 186:54 AM7:24 AM1:37 PM7:49 PM8:19 PM12 h 24 min-3:18
Sep 196:55 AM7:25 AM1:36 PM7:47 PM8:17 PM12 h 21 min-3:19
Sep 206:56 AM7:27 AM1:36 PM7:45 PM8:15 PM12 h 18 min-3:19
Sep 216:58 AM7:28 AM1:36 PM7:43 PM8:13 PM12 h 14 min-3:19
Sep 226:59 AM7:29 AM1:35 PM7:40 PM8:11 PM12 h 11 min-3:19
Sep 237:00 AM7:31 AM1:35 PM7:38 PM8:09 PM12 h 08 min-3:19
Sep 247:02 AM7:32 AM1:35 PM7:36 PM8:07 PM12 h 04 min-3:19
Sep 257:03 AM7:33 AM1:34 PM7:34 PM8:05 PM12 h 01 min-3:19
Sep 267:04 AM7:35 AM1:34 PM7:32 PM8:03 PM11 h 58 min-3:19
Sep 277:06 AM7:36 AM1:34 PM7:30 PM8:01 PM11 h 55 min-3:19
Sep 287:07 AM7:37 AM1:33 PM7:28 PM7:59 PM11 h 51 min-3:19
Sep 297:08 AM7:39 AM1:33 PM7:26 PM7:57 PM11 h 48 min-3:19
Sep 307:10 AM7:40 AM1:33 PM7:25 PM7:55 PM11 h 45 min-3:19
Local clock time (CDT). Sunrise and sunset when the sun's center is 0.833° below the horizon; civil twilight at 6°.

How these times are computed

Each row runs the SunCalc solar model for the stored capitol coordinate, 46.821° N, 100.783° W, and converts the result to local clock time with the America/Chicago time zone rules. Times assume a flat, open horizon at sea level. Hills, buildings and elevation shift what you see by a few minutes. The sunrise and sunset guide walks through the calculation.

Questions people ask

What time is sunrise in Bismarck in September?

Between 7:02 AM (September 1) and 7:40 AM (September 30) in 2027, local time.

What time is sunset in Bismarck in September?

Between 7:25 PM (September 30) and 8:22 PM (September 1) in 2027, local time.

How many hours of daylight does Bismarck get in September?

12 h 33 min on average, from 13 h 20 min on September 1 to 11 h 45 min on September 30.

Sources and data as of

Data as of: computed for September 2027 at 46.821° N, 100.783° W.

  1. 01SunCalc library (Vladimir Agafonkin), algorithms after Jean Meeus
  2. 02IANA time zone database (clock times and daylight saving rules)

How every number is computed: methodology. Spotted a wrong figure? Report an error.