57S Troy night times
Troy, MT
Night of Nov 6 to Nov 7MST
Position lights
§ 91.2095:16 PMto7:39 AM
Sunset to sunrise. Lights on.
0016Z to 1439Z
Night logging
§ 1.15:49 PMto7:06 AM
Civil twilight. Log it as night.
0049Z to 1406Z
Night currency
§ 61.57(b)6:16 PMto6:39 AM
One hour after sunset. Landings count.
0116Z to 1339Z
Evenings at 57S
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1MST | 5:24 PM | 5:57 PM | 6:24 PM |
| Nov 15MST | 5:04 PM | 5:38 PM | 6:04 PM |
| Dec 1MST | 4:51 PM | 5:27 PM | 5:51 PM |
| Dec 15MST | 4:49 PM | 5:26 PM | 5:49 PM |
| Jan 1MST | 4:59 PM | 5:36 PM | 5:59 PM |
| Jan 15MST | 5:16 PM | 5:52 PM | 6:16 PM |
| Feb 1MST | 5:42 PM | 6:16 PM | 6:42 PM |
| Feb 15MST | 6:05 PM | 6:37 PM | 7:05 PM |
| Mar 1MST | 6:27 PM | 6:59 PM | 7:27 PM |
| Mar 15MDT | 7:49 PM | 8:20 PM | 8:49 PM |
| Apr 1MDT | 8:14 PM | 8:46 PM | 9:14 PM |
| Apr 15MDT | 8:35 PM | 9:08 PM | 9:35 PM |
| May 1MDT | 8:58 PM | 9:33 PM | 9:58 PM |
| May 15MDT | 9:17 PM | 9:55 PM | 10:17 PM |
| Jun 1MDT | 9:37 PM | 10:18 PM | 10:37 PM |
| Jun 15MDT | 9:47 PM | 10:29 PM | 10:47 PM |
| Jul 1MDT | 9:49 PM | 10:30 PM | 10:49 PM |
| Jul 15MDT | 9:41 PM | 10:21 PM | 10:41 PM |
| Aug 1MDT | 9:21 PM | 9:58 PM | 10:21 PM |
| Aug 15MDT | 8:58 PM | 9:33 PM | 9:58 PM |
| Sep 1MDT | 8:25 PM | 8:58 PM | 9:25 PM |
| Sep 15MDT | 7:56 PM | 8:28 PM | 8:56 PM |
| Oct 1MDT | 7:23 PM | 7:54 PM | 8:23 PM |
| Oct 15MDT | 6:54 PM | 7:26 PM | 7:54 PM |
Mornings at 57S
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1MST | 6:30 AM | 6:57 AM | 7:30 AM |
| Nov 15MST | 6:52 AM | 7:18 AM | 7:52 AM |
| Dec 1MST | 7:14 AM | 7:39 AM | 8:14 AM |
| Dec 15MST | 7:29 AM | 7:52 AM | 8:29 AM |
| Jan 1MST | 7:35 AM | 7:59 AM | 8:35 AM |
| Jan 15MST | 7:30 AM | 7:55 AM | 8:30 AM |
| Feb 1MST | 7:13 AM | 7:39 AM | 8:13 AM |
| Feb 15MST | 6:51 AM | 7:19 AM | 7:51 AM |
| Mar 1MST | 6:25 AM | 6:54 AM | 7:25 AM |
| Mar 15MDT | 6:57 AM | 7:26 AM | 7:57 AM |
| Apr 1MDT | 6:22 AM | 6:50 AM | 7:22 AM |
| Apr 15MDT | 5:53 AM | 6:21 AM | 6:53 AM |
| May 1MDT | 5:24 AM | 5:49 AM | 6:24 AM |
| May 15MDT | 5:03 AM | 5:26 AM | 6:03 AM |
| Jun 1MDT | 4:46 AM | 5:06 AM | 5:46 AM |
| Jun 15MDT | 4:41 AM | 4:59 AM | 5:41 AM |
| Jul 1MDT | 4:46 AM | 5:04 AM | 5:46 AM |
| Jul 15MDT | 4:58 AM | 5:18 AM | 5:58 AM |
| Aug 1MDT | 5:18 AM | 5:41 AM | 6:18 AM |
| Aug 15MDT | 5:37 AM | 6:03 AM | 6:37 AM |
| Sep 1MDT | 6:01 AM | 6:28 AM | 7:01 AM |
| Sep 15MDT | 6:20 AM | 6:49 AM | 7:20 AM |
| Oct 1MDT | 6:43 AM | 7:12 AM | 7:43 AM |
| Oct 15MDT | 7:03 AM | 7:32 AM | 8:03 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
LGTD HELI ADJ TO SEGMENTED CIRCLE.
Runway 14/32
3,570 × 30 ft · Asphalt
Frequencies
Night at 57S, in short
When can I log night time at 57S?
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 5:49 PM to 7:06 AM MST.
When do landings at 57S 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 6:16 PM to 6:39 AM MST.
When are position lights required at 57S?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 5:16 PM to 7:39 AM MST.
Nearby airports
- S59 Libby Libby, MT · 20 nm
- 65S Boundary County Bonners Ferry, ID · 21 nm
- KSZT Sandpoint Sandpoint, ID · 28 nm
- 66S Cavanaugh Bay Coolin, ID · 37 nm
- D28 Tanglefoot Cavanaugh Bay, ID · 37 nm
- 1S1 Eckhart International Porthill, ID · 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.