KEFC Belle Fourche Municipal night times
Belle Fourche, SD · FAA EFC
Night of Nov 6 to Nov 7MST
Position lights
§ 91.2094:37 PMto6:42 AM
Sunset to sunrise. Lights on.
2337Z to 1342Z
Night logging
§ 1.15:08 PMto6:11 AM
Civil twilight. Log it as night.
0008Z to 1311Z
Night currency
§ 61.57(b)5:37 PMto5:42 AM
One hour after sunset. Landings count.
0037Z to 1242Z
Evenings at KEFC
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1MST | 4:44 PM | 5:14 PM | 5:44 PM |
| Nov 15MST | 4:27 PM | 4:59 PM | 5:27 PM |
| Dec 1MST | 4:16 PM | 4:49 PM | 5:16 PM |
| Dec 15MST | 4:15 PM | 4:49 PM | 5:15 PM |
| Jan 1MST | 4:25 PM | 4:59 PM | 5:25 PM |
| Jan 15MST | 4:41 PM | 5:13 PM | 5:41 PM |
| Feb 1MST | 5:04 PM | 5:35 PM | 6:04 PM |
| Feb 15MST | 5:24 PM | 5:54 PM | 6:24 PM |
| Mar 1MST | 5:43 PM | 6:12 PM | 6:43 PM |
| Mar 15MDT | 7:01 PM | 7:31 PM | 8:01 PM |
| Apr 1MDT | 7:23 PM | 7:53 PM | 8:23 PM |
| Apr 15MDT | 7:40 PM | 8:11 PM | 8:40 PM |
| May 1MDT | 8:00 PM | 8:33 PM | 9:00 PM |
| May 15MDT | 8:17 PM | 8:51 PM | 9:17 PM |
| Jun 1MDT | 8:34 PM | 9:10 PM | 9:34 PM |
| Jun 15MDT | 8:43 PM | 9:20 PM | 9:43 PM |
| Jul 1MDT | 8:45 PM | 9:22 PM | 9:45 PM |
| Jul 15MDT | 8:38 PM | 9:14 PM | 9:38 PM |
| Aug 1MDT | 8:21 PM | 8:55 PM | 9:21 PM |
| Aug 15MDT | 8:01 PM | 8:33 PM | 9:01 PM |
| Sep 1MDT | 7:32 PM | 8:02 PM | 8:32 PM |
| Sep 15MDT | 7:06 PM | 7:36 PM | 8:06 PM |
| Oct 1MDT | 6:36 PM | 7:05 PM | 7:36 PM |
| Oct 15MDT | 6:11 PM | 6:40 PM | 7:11 PM |
Mornings at KEFC
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 | 5:53 AM | 6:21 AM | 6:53 AM |
| Dec 1MST | 6:13 AM | 6:40 AM | 7:13 AM |
| Dec 15MST | 6:26 AM | 6:52 AM | 7:26 AM |
| Jan 1MST | 6:33 AM | 6:59 AM | 7:33 AM |
| Jan 15MST | 6:29 AM | 6:57 AM | 7:29 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 | 6:04 AM | 6:33 AM |
| Mar 15MDT | 6:08 AM | 6:39 AM | 7:08 AM |
| Apr 1MDT | 5:36 AM | 6:07 AM | 6:36 AM |
| Apr 15MDT | 5:11 AM | 5:41 AM | 6:11 AM |
| May 1MDT | 4:46 AM | 5:13 AM | 5:46 AM |
| May 15MDT | 4:27 AM | 4:53 AM | 5:27 AM |
| Jun 1MDT | 4:13 AM | 4:37 AM | 5:13 AM |
| Jun 15MDT | 4:09 AM | 4:32 AM | 5:09 AM |
| Jul 1MDT | 4:14 AM | 4:37 AM | 5:14 AM |
| Jul 15MDT | 4:24 AM | 4:48 AM | 5:24 AM |
| Aug 1MDT | 4:42 AM | 5:08 AM | 5:42 AM |
| Aug 15MDT | 4:58 AM | 5:26 AM | 5:58 AM |
| Sep 1MDT | 5:18 AM | 5:48 AM | 6:18 AM |
| Sep 15MDT | 5:34 AM | 6:05 AM | 6:34 AM |
| Oct 1MDT | 5:53 AM | 6:24 AM | 6:53 AM |
| Oct 15MDT | 6:11 AM | 6:41 AM | 7:11 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
ACTVT MIRL RWY 14/32 - CTAF.
Runway 14/32
4,501 × 60 ft · Asphalt
Runway 18/36
3,639 × 120 ft · Turf
Frequencies
Night at KEFC, in short
When can I log night time at KEFC?
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 5:08 PM to 6:11 AM MST.
When do landings at KEFC 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 5:37 PM to 5:42 AM MST.
When are position lights required at KEFC?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 4:37 PM to 6:42 AM MST.
Nearby airports
- KSPF Black Hills-Clyde Ice Field Spearfish, SD · 16 nm
- 49B Sturgis Municipal Sturgis, SD · 28 nm
- W43 Hulett Municipal Hulett, WY · 30 nm
- 83V Upton Municipal Upton, WY · 51 nm
- 9D2 Harding County Buffalo, SD · 53 nm
- KRAP Rapid City Regional Rapid City, SD · 54 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.