9D2 Harding County night times
Buffalo, SD
Night of Nov 6 to Nov 7MST
Position lights
§ 91.2094:34 PMto6:42 AM
Sunset to sunrise. Lights on.
2334Z to 1342Z
Night logging
§ 1.15:05 PMto6:11 AM
Civil twilight. Log it as night.
0005Z to 1311Z
Night currency
§ 61.57(b)5:34 PMto5:42 AM
One hour after sunset. Landings count.
0034Z to 1242Z
Evenings at 9D2
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1MST | 4:41 PM | 5:12 PM | 5:41 PM |
| Nov 15MST | 4:23 PM | 4:56 PM | 5:23 PM |
| Dec 1MST | 4:12 PM | 4:45 PM | 5:12 PM |
| Dec 15MST | 4:11 PM | 4:45 PM | 5:11 PM |
| Jan 1MST | 4:21 PM | 4:55 PM | 5:21 PM |
| Jan 15MST | 4:37 PM | 5:10 PM | 5:37 PM |
| Feb 1MST | 5:00 PM | 5:32 PM | 6:00 PM |
| Feb 15MST | 5:21 PM | 5:51 PM | 6:21 PM |
| Mar 1MST | 5:41 PM | 6:11 PM | 6:41 PM |
| Mar 15MDT | 7:00 PM | 7:29 PM | 8:00 PM |
| Apr 1MDT | 7:22 PM | 7:52 PM | 8:22 PM |
| Apr 15MDT | 7:40 PM | 8:12 PM | 8:40 PM |
| May 1MDT | 8:01 PM | 8:34 PM | 9:01 PM |
| May 15MDT | 8:18 PM | 8:53 PM | 9:18 PM |
| Jun 1MDT | 8:36 PM | 9:13 PM | 9:36 PM |
| Jun 15MDT | 8:45 PM | 9:23 PM | 9:45 PM |
| Jul 1MDT | 8:47 PM | 9:25 PM | 9:47 PM |
| Jul 15MDT | 8:40 PM | 9:17 PM | 9:40 PM |
| Aug 1MDT | 8:22 PM | 8:57 PM | 9:22 PM |
| Aug 15MDT | 8:02 PM | 8:34 PM | 9:02 PM |
| Sep 1MDT | 7:32 PM | 8:03 PM | 8:32 PM |
| Sep 15MDT | 7:05 PM | 7:35 PM | 8:05 PM |
| Oct 1MDT | 6:34 PM | 7:04 PM | 7:34 PM |
| Oct 15MDT | 6:09 PM | 6:39 PM | 7:09 PM |
Mornings at 9D2
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1MST | 5:34 AM | 6:03 AM | 6:34 AM |
| Nov 15MST | 5:54 AM | 6:21 AM | 6:54 AM |
| Dec 1MST | 6:14 AM | 6:41 AM | 7:14 AM |
| Dec 15MST | 6:28 AM | 6:54 AM | 7:28 AM |
| Jan 1MST | 6:35 AM | 7:00 AM | 7:35 AM |
| Jan 15MST | 6:31 AM | 6:58 AM | 7:31 AM |
| Feb 1MST | 6:15 AM | 6:44 AM | 7:15 AM |
| Feb 15MST | 5:56 AM | 6:26 AM | 6:56 AM |
| Mar 1MST | 5:33 AM | 6:03 AM | 6:33 AM |
| Mar 15MDT | 6:07 AM | 6:37 AM | 7:07 AM |
| Apr 1MDT | 5:35 AM | 6:05 AM | 6:35 AM |
| Apr 15MDT | 5:09 AM | 5:38 AM | 6:09 AM |
| May 1MDT | 4:42 AM | 5:09 AM | 5:42 AM |
| May 15MDT | 4:23 AM | 4:49 AM | 5:23 AM |
| Jun 1MDT | 4:09 AM | 4:32 AM | 5:09 AM |
| Jun 15MDT | 4:04 AM | 4:26 AM | 5:04 AM |
| Jul 1MDT | 4:09 AM | 4:31 AM | 5:09 AM |
| Jul 15MDT | 4:20 AM | 4:43 AM | 5:20 AM |
| Aug 1MDT | 4:38 AM | 5:04 AM | 5:38 AM |
| Aug 15MDT | 4:55 AM | 5:22 AM | 5:55 AM |
| Sep 1MDT | 5:15 AM | 5:45 AM | 6:15 AM |
| Sep 15MDT | 5:32 AM | 6:03 AM | 6:32 AM |
| Oct 1MDT | 5:52 AM | 6:23 AM | 6:52 AM |
| Oct 15MDT | 6:10 AM | 6:40 AM | 7:10 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
Runway 12/30
3,900 × 60 ft · Asphalt
Frequencies
Night at 9D2, in short
When can I log night time at 9D2?
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 5:05 PM to 6:11 AM MST.
When do landings at 9D2 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 5:34 PM to 5:42 AM MST.
When are position lights required at 9D2?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:34 PM to 6:42 AM MST.
Nearby airports
- KBWW Bowman Regional Bowman, ND · 36 nm
- 6V5 Bison Municipal Bison, SD · 45 nm
- KHEI Hettinger/Jb Lindquist Regional Hettinger, ND · 45 nm
- 97M Ekalaka Ekalaka, MT · 46 nm
- KEFC Belle Fourche Municipal Belle Fourche, SD · 53 nm
- KBHK Baker Municipal Baker, MT · 55 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.