D47 Cougar Ranch night times
Challis, ID
Night of Nov 6 to Nov 7MST
Position lights
§ 91.2095:21 PMto7:26 AM
Sunset to sunrise. Lights on.
0021Z to 1426Z
Night logging
§ 1.15:52 PMto6:55 AM
Civil twilight. Log it as night.
0052Z to 1355Z
Night currency
§ 61.57(b)6:21 PMto6:26 AM
One hour after sunset. Landings count.
0121Z to 1326Z
Evenings at D47
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1MST | 5:28 PM | 5:58 PM | 6:28 PM |
| Nov 15MST | 5:11 PM | 5:43 PM | 6:11 PM |
| Dec 1MST | 5:00 PM | 5:33 PM | 6:00 PM |
| Dec 15MST | 5:00 PM | 5:33 PM | 6:00 PM |
| Jan 1MST | 5:10 PM | 5:43 PM | 6:10 PM |
| Jan 15MST | 5:25 PM | 5:58 PM | 6:25 PM |
| Feb 1MST | 5:48 PM | 6:19 PM | 6:48 PM |
| Feb 15MST | 6:08 PM | 6:38 PM | 7:08 PM |
| Mar 1MST | 6:27 PM | 6:57 PM | 7:27 PM |
| Mar 15MDT | 7:46 PM | 8:15 PM | 8:46 PM |
| Apr 1MDT | 8:07 PM | 8:37 PM | 9:07 PM |
| Apr 15MDT | 8:25 PM | 8:55 PM | 9:25 PM |
| May 1MDT | 8:45 PM | 9:17 PM | 9:45 PM |
| May 15MDT | 9:01 PM | 9:35 PM | 10:01 PM |
| Jun 1MDT | 9:18 PM | 9:54 PM | 10:18 PM |
| Jun 15MDT | 9:27 PM | 10:04 PM | 10:27 PM |
| Jul 1MDT | 9:29 PM | 10:06 PM | 10:29 PM |
| Jul 15MDT | 9:23 PM | 9:58 PM | 10:23 PM |
| Aug 1MDT | 9:06 PM | 9:39 PM | 10:06 PM |
| Aug 15MDT | 8:46 PM | 9:17 PM | 9:46 PM |
| Sep 1MDT | 8:17 PM | 8:47 PM | 9:17 PM |
| Sep 15MDT | 7:50 PM | 8:20 PM | 8:50 PM |
| Oct 1MDT | 7:20 PM | 7:49 PM | 8:20 PM |
| Oct 15MDT | 6:55 PM | 7:25 PM | 7:55 PM |
Mornings at D47
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1MST | 6:18 AM | 6:47 AM | 7:18 AM |
| Nov 15MST | 6:37 AM | 7:05 AM | 7:37 AM |
| Dec 1MST | 6:57 AM | 7:24 AM | 7:57 AM |
| Dec 15MST | 7:10 AM | 7:37 AM | 8:10 AM |
| Jan 1MST | 7:17 AM | 7:44 AM | 8:17 AM |
| Jan 15MST | 7:14 AM | 7:41 AM | 8:14 AM |
| Feb 1MST | 6:59 AM | 7:28 AM | 7:59 AM |
| Feb 15MST | 6:40 AM | 7:10 AM | 7:40 AM |
| Mar 1MST | 6:17 AM | 6:48 AM | 7:17 AM |
| Mar 15MDT | 6:52 AM | 7:23 AM | 7:52 AM |
| Apr 1MDT | 6:21 AM | 6:51 AM | 7:21 AM |
| Apr 15MDT | 5:56 AM | 6:25 AM | 6:56 AM |
| May 1MDT | 5:30 AM | 5:58 AM | 6:30 AM |
| May 15MDT | 5:12 AM | 5:38 AM | 6:12 AM |
| Jun 1MDT | 4:57 AM | 5:21 AM | 5:57 AM |
| Jun 15MDT | 4:53 AM | 5:16 AM | 5:53 AM |
| Jul 1MDT | 4:58 AM | 5:21 AM | 5:58 AM |
| Jul 15MDT | 5:08 AM | 5:33 AM | 6:08 AM |
| Aug 1MDT | 5:26 AM | 5:52 AM | 6:26 AM |
| Aug 15MDT | 5:42 AM | 6:10 AM | 6:42 AM |
| Sep 1MDT | 6:02 AM | 6:32 AM | 7:02 AM |
| Sep 15MDT | 6:18 AM | 6:49 AM | 7:18 AM |
| Oct 1MDT | 6:38 AM | 7:08 AM | 7:38 AM |
| Oct 15MDT | 6:55 AM | 7:26 AM | 7:55 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
Runway 02/20
1,400 × 20 ft · Dirt
Frequencies
Night at D47, in short
When can I log night time at D47?
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 5:52 PM to 6:55 AM MST.
When do landings at D47 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 6:21 PM to 6:26 AM MST.
When are position lights required at D47?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 5:21 PM to 7:26 AM MST.
Nearby airports
- 0U3 Mahoney Creek USFS Mahoney Creek, ID · 0 nm
- ID8 Marble Creek Challis, ID · 3 nm
- 2U8 Thomas Creek Stanley, ID · 4 nm
- C53 Lower Loon Creek Challis, ID · 6 nm
- S81 Indian Creek USFS Indian Creek, ID · 8 nm
- U72 Upper Loon Creek USFS Challis, ID · 10 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.