1D7 The Sigurd Anderson night times
Webster, SD
Night of Nov 6 to Nov 7CST
Position lights
§ 91.2095:11 PMto7:18 AM
Sunset to sunrise. Lights on.
2311Z to 1318Z
Night logging
§ 1.15:42 PMto6:46 AM
Civil twilight. Log it as night.
2342Z to 1246Z
Night currency
§ 61.57(b)6:11 PMto6:18 AM
One hour after sunset. Landings count.
0011Z to 1218Z
Evenings at 1D7
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1CST | 5:17 PM | 5:48 PM | 6:17 PM |
| Nov 15CST | 5:00 PM | 5:32 PM | 6:00 PM |
| Dec 1CST | 4:49 PM | 5:22 PM | 5:49 PM |
| Dec 15CST | 4:48 PM | 5:22 PM | 5:48 PM |
| Jan 1CST | 4:58 PM | 5:32 PM | 5:58 PM |
| Jan 15CST | 5:14 PM | 5:47 PM | 6:14 PM |
| Feb 1CST | 5:37 PM | 6:09 PM | 6:37 PM |
| Feb 15CST | 5:57 PM | 6:28 PM | 6:57 PM |
| Mar 1CST | 6:17 PM | 6:47 PM | 7:17 PM |
| Mar 15CDT | 7:36 PM | 8:05 PM | 8:36 PM |
| Apr 1CDT | 7:58 PM | 8:28 PM | 8:58 PM |
| Apr 15CDT | 8:16 PM | 8:47 PM | 9:16 PM |
| May 1CDT | 8:36 PM | 9:09 PM | 9:36 PM |
| May 15CDT | 8:53 PM | 9:28 PM | 9:53 PM |
| Jun 1CDT | 9:11 PM | 9:47 PM | 10:11 PM |
| Jun 15CDT | 9:20 PM | 9:57 PM | 10:20 PM |
| Jul 1CDT | 9:22 PM | 9:59 PM | 10:22 PM |
| Jul 15CDT | 9:15 PM | 9:51 PM | 10:15 PM |
| Aug 1CDT | 8:58 PM | 9:31 PM | 9:58 PM |
| Aug 15CDT | 8:37 PM | 9:09 PM | 9:37 PM |
| Sep 1CDT | 8:08 PM | 8:38 PM | 9:08 PM |
| Sep 15CDT | 7:41 PM | 8:11 PM | 8:41 PM |
| Oct 1CDT | 7:11 PM | 7:40 PM | 8:11 PM |
| Oct 15CDT | 6:45 PM | 7:15 PM | 7:45 PM |
Mornings at 1D7
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1CST | 6:09 AM | 6:39 AM | 7:09 AM |
| Nov 15CST | 6:29 AM | 6:57 AM | 7:29 AM |
| Dec 1CST | 6:49 AM | 7:16 AM | 7:49 AM |
| Dec 15CST | 7:03 AM | 7:29 AM | 8:03 AM |
| Jan 1CST | 7:09 AM | 7:36 AM | 8:09 AM |
| Jan 15CST | 7:06 AM | 7:33 AM | 8:06 AM |
| Feb 1CST | 6:51 AM | 7:19 AM | 7:51 AM |
| Feb 15CST | 6:32 AM | 7:01 AM | 7:32 AM |
| Mar 1CST | 6:08 AM | 6:39 AM | 7:08 AM |
| Mar 15CDT | 6:43 AM | 7:13 AM | 7:43 AM |
| Apr 1CDT | 6:11 AM | 6:41 AM | 7:11 AM |
| Apr 15CDT | 5:45 AM | 6:14 AM | 6:45 AM |
| May 1CDT | 5:19 AM | 5:46 AM | 6:19 AM |
| May 15CDT | 5:00 AM | 5:26 AM | 6:00 AM |
| Jun 1CDT | 4:46 AM | 5:09 AM | 5:46 AM |
| Jun 15CDT | 4:42 AM | 5:04 AM | 5:42 AM |
| Jul 1CDT | 4:46 AM | 5:09 AM | 5:46 AM |
| Jul 15CDT | 4:57 AM | 5:20 AM | 5:57 AM |
| Aug 1CDT | 5:14 AM | 5:40 AM | 6:14 AM |
| Aug 15CDT | 5:31 AM | 5:59 AM | 6:31 AM |
| Sep 1CDT | 5:52 AM | 6:21 AM | 6:52 AM |
| Sep 15CDT | 6:08 AM | 6:39 AM | 7:08 AM |
| Oct 1CDT | 6:28 AM | 6:59 AM | 7:28 AM |
| Oct 15CDT | 6:46 AM | 7:16 AM | 7:46 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
ACTVT MIRL RWY 12/30; PAPI RWY 12 & 30 - CTAF.
Runway 01/19
2,221 × 125 ft · Turf
Runway 12/30
3,705 × 60 ft · Asphalt
Frequencies
Night at 1D7, in short
When can I log night time at 1D7?
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 5:42 PM to 6:46 AM CST.
When do landings at 1D7 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 6:11 PM to 6:18 AM CST.
When are position lights required at 1D7?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 5:11 PM to 7:18 AM CST.
Nearby airports
- 8D7 Clark County Clark, SD · 25 nm
- KATY Watertown Regional Watertown, SD · 27 nm
- 2E6 Groton Municipal Groton, SD · 28 nm
- 8D3 Sisseton Municipal Sisseton, SD · 31 nm
- KBTN Britton Municipal Britton, SD · 33 nm
- KABR Aberdeen Regional Aberdeen, SD · 39 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.