S81 Indian Creek USFS night times
Indian Creek, ID
Night of Nov 6 to Nov 7MST
Position lights
§ 91.2095:22 PMto7:27 AM
Sunset to sunrise. Lights on.
0022Z to 1427Z
Night logging
§ 1.15:53 PMto6:56 AM
Civil twilight. Log it as night.
0053Z to 1356Z
Night currency
§ 61.57(b)6:22 PMto6:27 AM
One hour after sunset. Landings count.
0122Z to 1327Z
Evenings at S81
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1MST | 5:29 PM | 5:59 PM | 6:29 PM |
| Nov 15MST | 5:12 PM | 5:44 PM | 6:12 PM |
| Dec 1MST | 5:01 PM | 5:34 PM | 6:01 PM |
| Dec 15MST | 5:00 PM | 5:34 PM | 6:00 PM |
| Jan 1MST | 5:10 PM | 5:44 PM | 6:10 PM |
| Jan 15MST | 5:26 PM | 5:58 PM | 6:26 PM |
| Feb 1MST | 5:49 PM | 6:20 PM | 6:49 PM |
| Feb 15MST | 6:09 PM | 6:39 PM | 7:09 PM |
| Mar 1MST | 6:28 PM | 6:57 PM | 7:28 PM |
| Mar 15MDT | 7:46 PM | 8:16 PM | 8:46 PM |
| Apr 1MDT | 8:08 PM | 8:38 PM | 9:08 PM |
| Apr 15MDT | 8:26 PM | 8:56 PM | 9:26 PM |
| May 1MDT | 8:45 PM | 9:18 PM | 9:45 PM |
| May 15MDT | 9:02 PM | 9:36 PM | 10:02 PM |
| Jun 1MDT | 9:19 PM | 9:55 PM | 10:19 PM |
| Jun 15MDT | 9:28 PM | 10:05 PM | 10:28 PM |
| Jul 1MDT | 9:30 PM | 10:07 PM | 10:30 PM |
| Jul 15MDT | 9:23 PM | 9:59 PM | 10:23 PM |
| Aug 1MDT | 9:06 PM | 9:40 PM | 10:06 PM |
| Aug 15MDT | 8:46 PM | 9:18 PM | 9:46 PM |
| Sep 1MDT | 8:17 PM | 8:47 PM | 9:17 PM |
| Sep 15MDT | 7:51 PM | 8:21 PM | 8:51 PM |
| Oct 1MDT | 7:21 PM | 7:50 PM | 8:21 PM |
| Oct 15MDT | 6:56 PM | 7:25 PM | 7:56 PM |
Mornings at S81
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1MST | 6:19 AM | 6:48 AM | 7:19 AM |
| Nov 15MST | 6:38 AM | 7:06 AM | 7:38 AM |
| Dec 1MST | 6:58 AM | 7:25 AM | 7:58 AM |
| Dec 15MST | 7:11 AM | 7:37 AM | 8:11 AM |
| Jan 1MST | 7:18 AM | 7:44 AM | 8:18 AM |
| Jan 15MST | 7:14 AM | 7:42 AM | 8:14 AM |
| Feb 1MST | 7:00 AM | 7:29 AM | 8:00 AM |
| Feb 15MST | 6:41 AM | 7:11 AM | 7:41 AM |
| Mar 1MST | 6:18 AM | 6:49 AM | 7:18 AM |
| Mar 15MDT | 6:53 AM | 7:24 AM | 7:53 AM |
| Apr 1MDT | 6:21 AM | 6:52 AM | 7:21 AM |
| Apr 15MDT | 5:56 AM | 6:26 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 | 4:58 AM | 5:22 AM | 5:58 AM |
| Jun 15MDT | 4:54 AM | 5:17 AM | 5:54 AM |
| Jul 1MDT | 4:59 AM | 5:22 AM | 5:59 AM |
| Jul 15MDT | 5:09 AM | 5:33 AM | 6:09 AM |
| Aug 1MDT | 5:26 AM | 5:53 AM | 6:26 AM |
| Aug 15MDT | 5:43 AM | 6:11 AM | 6:43 AM |
| Sep 1MDT | 6:03 AM | 6:33 AM | 7:03 AM |
| Sep 15MDT | 6:19 AM | 6:50 AM | 7:19 AM |
| Oct 1MDT | 6:38 AM | 7:09 AM | 7:38 AM |
| Oct 15MDT | 6:56 AM | 7:26 AM | 7:56 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
Runway 04/22
4,650 × 40 ft · Dirt
Frequencies
Night at S81, in short
When can I log night time at S81?
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 5:53 PM to 6:56 AM MST.
When do landings at S81 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 6:22 PM to 6:27 AM MST.
When are position lights required at S81?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 5:22 PM to 7:27 AM MST.
Nearby airports
- 2U8 Thomas Creek Stanley, ID · 5 nm
- ID8 Marble Creek Challis, ID · 5 nm
- 0U3 Mahoney Creek USFS Mahoney Creek, ID · 8 nm
- D47 Cougar Ranch Challis, ID · 8 nm
- C53 Lower Loon Creek Challis, ID · 13 nm
- U72 Upper Loon Creek USFS Challis, ID · 16 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.