23S Seeley Lake night times
Seeley Lake, MT
Night of Nov 6 to Nov 7MST
Position lights
§ 91.2095:10 PMto7:26 AM
Sunset to sunrise. Lights on.
0010Z to 1426Z
Night logging
§ 1.15:42 PMto6:54 AM
Civil twilight. Log it as night.
0042Z to 1354Z
Night currency
§ 61.57(b)6:10 PMto6:26 AM
One hour after sunset. Landings count.
0110Z to 1326Z
Evenings at 23S
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1MST | 5:17 PM | 5:49 PM | 6:17 PM |
| Nov 15MST | 4:58 PM | 5:32 PM | 5:58 PM |
| Dec 1MST | 4:46 PM | 5:21 PM | 5:46 PM |
| Dec 15MST | 4:44 PM | 5:20 PM | 5:44 PM |
| Jan 1MST | 4:55 PM | 5:30 PM | 5:55 PM |
| Jan 15MST | 5:11 PM | 5:45 PM | 6:11 PM |
| Feb 1MST | 5:36 PM | 6:09 PM | 6:36 PM |
| Feb 15MST | 5:58 PM | 6:29 PM | 6:58 PM |
| Mar 1MST | 6:19 PM | 6:50 PM | 7:19 PM |
| Mar 15MDT | 7:39 PM | 8:10 PM | 8:39 PM |
| Apr 1MDT | 8:03 PM | 8:34 PM | 9:03 PM |
| Apr 15MDT | 8:23 PM | 8:55 PM | 9:23 PM |
| May 1MDT | 8:45 PM | 9:19 PM | 9:45 PM |
| May 15MDT | 9:03 PM | 9:40 PM | 10:03 PM |
| Jun 1MDT | 9:22 PM | 10:01 PM | 10:22 PM |
| Jun 15MDT | 9:31 PM | 10:12 PM | 10:31 PM |
| Jul 1MDT | 9:33 PM | 10:13 PM | 10:33 PM |
| Jul 15MDT | 9:26 PM | 10:04 PM | 10:26 PM |
| Aug 1MDT | 9:07 PM | 9:42 PM | 10:07 PM |
| Aug 15MDT | 8:45 PM | 9:19 PM | 9:45 PM |
| Sep 1MDT | 8:14 PM | 8:45 PM | 9:14 PM |
| Sep 15MDT | 7:46 PM | 8:16 PM | 8:46 PM |
| Oct 1MDT | 7:13 PM | 7:44 PM | 8:13 PM |
| Oct 15MDT | 6:46 PM | 7:17 PM | 7:46 PM |
Mornings at 23S
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1MST | 6:17 AM | 6:45 AM | 7:17 AM |
| Nov 15MST | 6:38 AM | 7:05 AM | 7:38 AM |
| Dec 1MST | 7:00 AM | 7:25 AM | 8:00 AM |
| Dec 15MST | 7:14 AM | 7:38 AM | 8:14 AM |
| Jan 1MST | 7:20 AM | 7:45 AM | 8:20 AM |
| Jan 15MST | 7:16 AM | 7:41 AM | 8:16 AM |
| Feb 1MST | 6:59 AM | 7:27 AM | 7:59 AM |
| Feb 15MST | 6:39 AM | 7:07 AM | 7:39 AM |
| Mar 1MST | 6:14 AM | 6:43 AM | 7:14 AM |
| Mar 15MDT | 6:47 AM | 7:16 AM | 7:47 AM |
| Apr 1MDT | 6:13 AM | 6:42 AM | 7:13 AM |
| Apr 15MDT | 5:46 AM | 6:14 AM | 6:46 AM |
| May 1MDT | 5:18 AM | 5:44 AM | 6:18 AM |
| May 15MDT | 4:58 AM | 5:22 AM | 5:58 AM |
| Jun 1MDT | 4:42 AM | 5:03 AM | 5:42 AM |
| Jun 15MDT | 4:37 AM | 4:57 AM | 5:37 AM |
| Jul 1MDT | 4:42 AM | 5:02 AM | 5:42 AM |
| Jul 15MDT | 4:53 AM | 5:15 AM | 5:53 AM |
| Aug 1MDT | 5:13 AM | 5:37 AM | 6:13 AM |
| Aug 15MDT | 5:31 AM | 5:57 AM | 6:31 AM |
| Sep 1MDT | 5:53 AM | 6:21 AM | 6:53 AM |
| Sep 15MDT | 6:11 AM | 6:41 AM | 7:11 AM |
| Oct 1MDT | 6:33 AM | 7:02 AM | 7:33 AM |
| Oct 15MDT | 6:52 AM | 7:21 AM | 7:52 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
RWY 34 SOLAR LGTS FIRST 2/3 OF RWY - SUMMER MONTHS ONLY
Runway 16/34
4,575 × 75 ft · Turf
Frequencies
Night at 23S, in short
When can I log night time at 23S?
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 5:42 PM to 6:54 AM MST.
When do landings at 23S 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 6:10 PM to 6:26 AM MST.
When are position lights required at 23S?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 5:10 PM to 7:26 AM MST.
Nearby airports
- M35 Lindey's Landing West Seeley Lake, MT · 1 nm
- S04 Condon USFS Condon, MT · 24 nm
- 52S St Ignatius St Ignatius, MT · 27 nm
- RC0 Rock Creek Clinton, MT · 29 nm
- 3U7 Benchmark Augusta, MT · 29 nm
- KMSO Missoula Montana Missoula, MT · 31 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.