S59 Libby night times
Libby, MT
Night of Nov 6 to Nov 7MST
Position lights
§ 91.2095:15 PMto7:37 AM
Sunset to sunrise. Lights on.
0015Z to 1437Z
Night logging
§ 1.15:48 PMto7:04 AM
Civil twilight. Log it as night.
0048Z to 1404Z
Night currency
§ 61.57(b)6:15 PMto6:37 AM
One hour after sunset. Landings count.
0115Z to 1337Z
Evenings at S59
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1MST | 5:23 PM | 5:55 PM | 6:23 PM |
| Nov 15MST | 5:03 PM | 5:37 PM | 6:03 PM |
| Dec 1MST | 4:50 PM | 5:26 PM | 5:50 PM |
| Dec 15MST | 4:48 PM | 5:25 PM | 5:48 PM |
| Jan 1MST | 4:58 PM | 5:35 PM | 5:58 PM |
| Jan 15MST | 5:15 PM | 5:51 PM | 6:15 PM |
| Feb 1MST | 5:41 PM | 6:15 PM | 6:41 PM |
| Feb 15MST | 6:04 PM | 6:36 PM | 7:04 PM |
| Mar 1MST | 6:26 PM | 6:57 PM | 7:26 PM |
| Mar 15MDT | 7:47 PM | 8:18 PM | 8:47 PM |
| Apr 1MDT | 8:12 PM | 8:44 PM | 9:12 PM |
| Apr 15MDT | 8:33 PM | 9:06 PM | 9:33 PM |
| May 1MDT | 8:56 PM | 9:31 PM | 9:56 PM |
| May 15MDT | 9:15 PM | 9:53 PM | 10:15 PM |
| Jun 1MDT | 9:35 PM | 10:15 PM | 10:35 PM |
| Jun 15MDT | 9:45 PM | 10:26 PM | 10:45 PM |
| Jul 1MDT | 9:46 PM | 10:28 PM | 10:46 PM |
| Jul 15MDT | 9:38 PM | 10:18 PM | 10:38 PM |
| Aug 1MDT | 9:19 PM | 9:55 PM | 10:19 PM |
| Aug 15MDT | 8:56 PM | 9:30 PM | 9:56 PM |
| Sep 1MDT | 8:23 PM | 8:56 PM | 9:23 PM |
| Sep 15MDT | 7:55 PM | 8:26 PM | 8:55 PM |
| Oct 1MDT | 7:21 PM | 7:52 PM | 8:21 PM |
| Oct 15MDT | 6:53 PM | 7:25 PM | 7:53 PM |
Mornings at S59
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1MST | 6:28 AM | 6:55 AM | 7:28 AM |
| Nov 15MST | 6:50 AM | 7:15 AM | 7:50 AM |
| Dec 1MST | 7:12 AM | 7:36 AM | 8:12 AM |
| Dec 15MST | 7:26 AM | 7:50 AM | 8:26 AM |
| Jan 1MST | 7:33 AM | 7:57 AM | 8:33 AM |
| Jan 15MST | 7:28 AM | 7:53 AM | 8:28 AM |
| Feb 1MST | 7:10 AM | 7:37 AM | 8:10 AM |
| Feb 15MST | 6:49 AM | 7:17 AM | 7:49 AM |
| Mar 1MST | 6:23 AM | 6:52 AM | 7:23 AM |
| Mar 15MDT | 6:55 AM | 7:24 AM | 7:55 AM |
| Apr 1MDT | 6:20 AM | 6:49 AM | 7:20 AM |
| Apr 15MDT | 5:52 AM | 6:19 AM | 6:52 AM |
| May 1MDT | 5:23 AM | 5:48 AM | 6:23 AM |
| May 15MDT | 5:02 AM | 5:25 AM | 6:02 AM |
| Jun 1MDT | 4:46 AM | 5:05 AM | 5:46 AM |
| Jun 15MDT | 4:41 AM | 4:59 AM | 5:41 AM |
| Jul 1MDT | 4:45 AM | 5:04 AM | 5:45 AM |
| Jul 15MDT | 4:57 AM | 5:17 AM | 5:57 AM |
| Aug 1MDT | 5:17 AM | 5:40 AM | 6:17 AM |
| Aug 15MDT | 5:36 AM | 6:02 AM | 6:36 AM |
| Sep 1MDT | 6:00 AM | 6:27 AM | 7:00 AM |
| Sep 15MDT | 6:19 AM | 6:47 AM | 7:19 AM |
| Oct 1MDT | 6:41 AM | 7:10 AM | 7:41 AM |
| Oct 15MDT | 7:02 AM | 7:30 AM | 8:02 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
ACTVT REIL RWY 15 & 33; PAPI RWY 15 & 33; MIRL RWY 15/33 - CTAF.
Runway 15/33
5,003 × 75 ft · Asphalt
Frequencies
Night at S59, in short
When can I log night time at S59?
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 5:48 PM to 7:04 AM MST.
When do landings at S59 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 6:15 PM to 6:37 AM MST.
When are position lights required at S59?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 5:15 PM to 7:37 AM MST.
Nearby airports
- 57S Troy Troy, MT · 20 nm
- S77 Magee Coeur D'alene, ID · 40 nm
- 65S Boundary County Bonners Ferry, ID · 42 nm
- KSZT Sandpoint Sandpoint, ID · 43 nm
- KTHM Thompson Falls Thompson Falls, MT · 43 nm
- 88M Eureka Eureka, MT · 44 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.