91N Turtle Lake Municipal night times
Turtle Lake, ND
Night of Nov 6 to Nov 7CST
Position lights
§ 91.2095:19 PMto7:37 AM
Sunset to sunrise. Lights on.
2319Z to 1337Z
Night logging
§ 1.15:51 PMto7:04 AM
Civil twilight. Log it as night.
2351Z to 1304Z
Night currency
§ 61.57(b)6:19 PMto6:37 AM
One hour after sunset. Landings count.
0019Z to 1237Z
Evenings at 91N
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1CST | 5:26 PM | 5:58 PM | 6:26 PM |
| Nov 15CST | 5:07 PM | 5:41 PM | 6:07 PM |
| Dec 1CST | 4:55 PM | 5:30 PM | 5:55 PM |
| Dec 15CST | 4:53 PM | 5:29 PM | 5:53 PM |
| Jan 1CST | 5:03 PM | 5:39 PM | 6:03 PM |
| Jan 15CST | 5:20 PM | 5:54 PM | 6:20 PM |
| Feb 1CST | 5:45 PM | 6:18 PM | 6:45 PM |
| Feb 15CST | 6:07 PM | 6:39 PM | 7:07 PM |
| Mar 1CST | 6:28 PM | 6:59 PM | 7:28 PM |
| Mar 15CDT | 7:49 PM | 8:20 PM | 8:49 PM |
| Apr 1CDT | 8:13 PM | 8:45 PM | 9:13 PM |
| Apr 15CDT | 8:33 PM | 9:05 PM | 9:33 PM |
| May 1CDT | 8:55 PM | 9:30 PM | 9:55 PM |
| May 15CDT | 9:14 PM | 9:51 PM | 10:14 PM |
| Jun 1CDT | 9:33 PM | 10:12 PM | 10:33 PM |
| Jun 15CDT | 9:43 PM | 10:23 PM | 10:43 PM |
| Jul 1CDT | 9:44 PM | 10:25 PM | 10:44 PM |
| Jul 15CDT | 9:37 PM | 10:16 PM | 10:37 PM |
| Aug 1CDT | 9:18 PM | 9:54 PM | 10:18 PM |
| Aug 15CDT | 8:56 PM | 9:30 PM | 9:56 PM |
| Sep 1CDT | 8:24 PM | 8:56 PM | 9:24 PM |
| Sep 15CDT | 7:56 PM | 8:27 PM | 8:56 PM |
| Oct 1CDT | 7:23 PM | 7:54 PM | 8:23 PM |
| Oct 15CDT | 6:56 PM | 7:27 PM | 7:56 PM |
Mornings at 91N
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1CST | 6:28 AM | 6:56 AM | 7:28 AM |
| Nov 15CST | 6:49 AM | 7:15 AM | 7:49 AM |
| Dec 1CST | 7:11 AM | 7:36 AM | 8:11 AM |
| Dec 15CST | 7:25 AM | 7:49 AM | 8:25 AM |
| Jan 1CST | 7:32 AM | 7:56 AM | 8:32 AM |
| Jan 15CST | 7:27 AM | 7:52 AM | 8:27 AM |
| Feb 1CST | 7:10 AM | 7:37 AM | 8:10 AM |
| Feb 15CST | 6:49 AM | 7:18 AM | 7:49 AM |
| Mar 1CST | 6:24 AM | 6:53 AM | 7:24 AM |
| Mar 15CDT | 6:57 AM | 7:26 AM | 7:57 AM |
| Apr 1CDT | 6:23 AM | 6:52 AM | 7:23 AM |
| Apr 15CDT | 5:55 AM | 6:23 AM | 6:55 AM |
| May 1CDT | 5:27 AM | 5:53 AM | 6:27 AM |
| May 15CDT | 5:07 AM | 5:30 AM | 6:07 AM |
| Jun 1CDT | 4:51 AM | 5:11 AM | 5:51 AM |
| Jun 15CDT | 4:46 AM | 5:05 AM | 5:46 AM |
| Jul 1CDT | 4:50 AM | 5:10 AM | 5:50 AM |
| Jul 15CDT | 5:02 AM | 5:23 AM | 6:02 AM |
| Aug 1CDT | 5:21 AM | 5:45 AM | 6:21 AM |
| Aug 15CDT | 5:40 AM | 6:06 AM | 6:40 AM |
| Sep 1CDT | 6:02 AM | 6:30 AM | 7:02 AM |
| Sep 15CDT | 6:21 AM | 6:50 AM | 7:21 AM |
| Oct 1CDT | 6:43 AM | 7:12 AM | 7:43 AM |
| Oct 15CDT | 7:02 AM | 7:31 AM | 8:02 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
ACTVT LIRL RY 08/26 - CTAF. LIRL RY 08/26 OUT OF SERVICE INDEFINITELY.
Runway 08/26
3,148 × 120 ft · Turf
LIRL RY 08/26 OUT OF SERVICE INDEFINITELY.
Frequencies
Night at 91N, in short
When can I log night time at 91N?
From the end of evening civil twilight to the beginning of morning civil twilight, when the sun is 6° below the horizon (14 CFR 1.1). On the night of Nov 6, 2026, that was 5:51 PM to 7:04 AM CST.
When do landings at 91N count for night currency?
From one hour after sunset to one hour before sunrise. To carry passengers at night you need 3 takeoffs and 3 full-stop landings in that period within the last 90 days (14 CFR 61.57(b)). On the night of Nov 6, 2026, that was 6:19 PM to 6:37 AM CST.
When are position lights required at 91N?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 5:19 PM to 7:37 AM CST.
Nearby airports
- 5C8 Washburn Municipal Washburn, ND · 10 nm
- 7G2 Mc Clusky Municipal Mc Clusky, ND · 18 nm
- 37N Garrison Dam Recreational Airpark Riverdale, ND · 20 nm
- D05 Garrison Municipal Garrison, ND · 23 nm
- KHZE Mercer County Regional Hazen, ND · 30 nm
- 95D Beulah Beulah, ND · 40 nm
Times are worked out from the sun's position for a sea-level horizon, rounded to the minute. Airport data from the FAA NASR cycle of Oct 29, 2026.