8S1 Polson night times
Polson, MT
Night of Nov 6 to Nov 7MST
Position lights
§ 91.2095:11 PMto7:30 AM
Sunset to sunrise. Lights on.
0011Z to 1430Z
Night logging
§ 1.15:44 PMto6:58 AM
Civil twilight. Log it as night.
0044Z to 1358Z
Night currency
§ 61.57(b)6:11 PMto6:30 AM
One hour after sunset. Landings count.
0111Z to 1330Z
Evenings at 8S1
When each night begins, through the year. Local time.
| Date | SunsetLights on | Civil twilight endsLog night | 1 hr after sunsetLandings count |
|---|---|---|---|
| Nov 1MST | 5:19 PM | 5:51 PM | 6:19 PM |
| Nov 15MST | 5:00 PM | 5:33 PM | 6:00 PM |
| Dec 1MST | 4:47 PM | 5:22 PM | 5:47 PM |
| Dec 15MST | 4:45 PM | 5:21 PM | 5:45 PM |
| Jan 1MST | 4:56 PM | 5:31 PM | 5:56 PM |
| Jan 15MST | 5:12 PM | 5:47 PM | 6:12 PM |
| Feb 1MST | 5:38 PM | 6:11 PM | 6:38 PM |
| Feb 15MST | 6:00 PM | 6:32 PM | 7:00 PM |
| Mar 1MST | 6:21 PM | 6:52 PM | 7:21 PM |
| Mar 15MDT | 7:42 PM | 8:13 PM | 8:42 PM |
| Apr 1MDT | 8:07 PM | 8:38 PM | 9:07 PM |
| Apr 15MDT | 8:27 PM | 8:59 PM | 9:27 PM |
| May 1MDT | 8:49 PM | 9:24 PM | 9:49 PM |
| May 15MDT | 9:08 PM | 9:45 PM | 10:08 PM |
| Jun 1MDT | 9:27 PM | 10:06 PM | 10:27 PM |
| Jun 15MDT | 9:37 PM | 10:17 PM | 10:37 PM |
| Jul 1MDT | 9:38 PM | 10:19 PM | 10:38 PM |
| Jul 15MDT | 9:31 PM | 10:10 PM | 10:31 PM |
| Aug 1MDT | 9:11 PM | 9:47 PM | 10:11 PM |
| Aug 15MDT | 8:49 PM | 9:23 PM | 9:49 PM |
| Sep 1MDT | 8:17 PM | 8:49 PM | 9:17 PM |
| Sep 15MDT | 7:49 PM | 8:20 PM | 8:49 PM |
| Oct 1MDT | 7:16 PM | 7:47 PM | 8:16 PM |
| Oct 15MDT | 6:49 PM | 7:20 PM | 7:49 PM |
Mornings at 8S1
When each night ends. Local time.
| Date | 1 hr before sunriseLandings stop counting | Civil twilight beginsNight logging ends | SunriseLights off |
|---|---|---|---|
| Nov 1MST | 6:21 AM | 6:49 AM | 7:21 AM |
| Nov 15MST | 6:42 AM | 7:09 AM | 7:42 AM |
| Dec 1MST | 7:05 AM | 7:29 AM | 8:05 AM |
| Dec 15MST | 7:19 AM | 7:43 AM | 8:19 AM |
| Jan 1MST | 7:25 AM | 7:49 AM | 8:25 AM |
| Jan 15MST | 7:21 AM | 7:46 AM | 8:21 AM |
| Feb 1MST | 7:04 AM | 7:31 AM | 8:04 AM |
| Feb 15MST | 6:43 AM | 7:11 AM | 7:43 AM |
| Mar 1MST | 6:17 AM | 6:47 AM | 7:17 AM |
| Mar 15MDT | 6:50 AM | 7:19 AM | 7:50 AM |
| Apr 1MDT | 6:15 AM | 6:44 AM | 7:15 AM |
| Apr 15MDT | 5:48 AM | 6:16 AM | 6:48 AM |
| May 1MDT | 5:20 AM | 5:45 AM | 6:20 AM |
| May 15MDT | 4:59 AM | 5:22 AM | 5:59 AM |
| Jun 1MDT | 4:43 AM | 5:03 AM | 5:43 AM |
| Jun 15MDT | 4:38 AM | 4:57 AM | 5:38 AM |
| Jul 1MDT | 4:43 AM | 5:02 AM | 5:43 AM |
| Jul 15MDT | 4:54 AM | 5:15 AM | 5:54 AM |
| Aug 1MDT | 5:14 AM | 5:38 AM | 6:14 AM |
| Aug 15MDT | 5:32 AM | 5:58 AM | 6:32 AM |
| Sep 1MDT | 5:55 AM | 6:23 AM | 6:55 AM |
| Sep 15MDT | 6:14 AM | 6:43 AM | 7:14 AM |
| Oct 1MDT | 6:36 AM | 7:05 AM | 7:36 AM |
| Oct 15MDT | 6:56 AM | 7:24 AM | 7:56 AM |
Lights and runways
As the FAA lists them. NOTAMs aren't included, so check current NOTAMs before you fly.
ACTVT PAPI RWY 18 & 36; MIRL RWY 18/36 - CTAF.
Runway 03W/21W
4,000 × 500 ft · Water
Runway 18/36
4,194 × 75 ft · Asphalt
Frequencies
Night at 8S1, in short
When can I log night time at 8S1?
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 5:44 PM to 6:58 AM MST.
When do landings at 8S1 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 6:11 PM to 6:30 AM MST.
When are position lights required at 8S1?
From sunset to sunrise (14 CFR 91.209(a)). On the night of Nov 6, 2026, that was 5:11 PM to 7:30 AM MST.
Nearby airports
- 7S0 Ronan Ronan, MT · 8 nm
- S09 Hot Springs Hot Springs, MT · 18 nm
- S04 Condon USFS Condon, MT · 21 nm
- 52S St Ignatius St Ignatius, MT · 23 nm
- 53U Ferndale Airfield Bigfork, MT · 23 nm
- S27 Kalispell City Kalispell, MT · 29 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.